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Bird List

Updated ~10 seconds ago
510 All Years 414 This Year 2024 53 This Month Jul 2024
Last Observed First Observed High Count

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  1. Species Name
    Count
    Date
    Observer
    Location

Native and Naturalized (510)

  1. Cinnamon Hummingbird Amazilia rutila
    # Count: 1
    Date:
    Observer: Levi Wong
    Location: Arenal Observatory Lodge
  2. White-tipped Sicklebill Eutoxeres aquila
    # Count: 1
    Date:
    Observer: Raúl Obregón
    Location: Arenal Observatory Lodge
  3. White-bellied Mountain-gem Lampornis hemileucus
    # Count: 1
    Date:
    Observer: Raúl Obregón
    Location: Arenal Observatory Lodge
  4. Ruddy Woodcreeper Dendrocincla homochroa
    # Count: 1
    Date:
    Observer: Kelly Ormesher
    Location: Arenal Observatory Lodge
  5. Plumbeous Kite Ictinia plumbea
    # Count: 1
    Date:
    Observer: Diana Höhlig
    Location: Arenal Observatory Lodge
  6. Montezuma Oropendola Psarocolius montezuma
    # Count: 100
    Date:
    Observer: Vitaliy Zhurba
    Location: Arenal Observatory Lodge
  7. Scarlet-rumped Cacique Cacicus uropygialis
    # Count: 5
    Date:
    Observer: Gabriel Rojas sorococas team
    Location: Arenal Observatory Lodge
  8. Great Curassow Crax rubra
    # Count: 20
    Date:
    Observer: Vic Hubbard
    Location: Arenal Observatory Lodge
  9. Southern Lapwing Vanellus chilensis
    # Count: 13
    Date:
    Observer: Anthony Arce
    Location: Arenal Observatory Lodge
  10. Cocoa Woodcreeper Xiphorhynchus susurrans
    # Count: 3
    Date:
    Observer: Raúl Obregón
    Location: Arenal Observatory Lodge
  11. Lesson's Motmot Momotus lessonii
    # Count: 2
    Date:
    Observer: Marcela Marín Ramírez
    Location: Arenal Observatory Lodge
  12. American Pygmy Kingfisher Chloroceryle aenea
    # Count: 1
    Date:
    Observer: Marcela Marín Ramírez
    Location: Arenal Observatory Lodge
  13. White-tailed Kite Elanus leucurus
    # Count: 2
    Date:
    Observer: Toby Ross
    Location: Arenal Observatory Lodge
  14. Pale-billed Woodpecker Campephilus guatemalensis
    # Count: 5
    Date:
    Observer: Raúl Obregón
    Location: Arenal Observatory Lodge
  15. Sepia-capped Flycatcher Leptopogon amaurocephalus
    # Count: 2
    Date:
    Observer: Raúl Obregón
    Location: Arenal Observatory Lodge
  16. Collared Redstart Myioborus torquatus
    # Count: 1
    Date:
    Observer: Shawn Pfautsch
    Location: Arenal Observatory Lodge
  17. Yellow-bellied Flycatcher Empidonax flaviventris
    # Count: 8
    Date:
    Observer: Brandon Cruz
    Location: Arenal Observatory Lodge
  18. Gray Catbird Dumetella carolinensis
    # Count: 1
    Date:
    Observer: Gustavo Rojas
    Location: Arenal Observatory Lodge
  19. Short-billed Pigeon Patagioenas nigrirostris
    # Count: 13
    Date:
    Observer: Barbara Spencer
    Location: Arenal Observatory Lodge
  20. Bronze-tailed Plumeleteer Chalybura urochrysia
    # Count: 6
    Date:
    Observer: Karen Warner
    Location: Arenal Observatory Lodge
  21. Cinnamon Becard Pachyramphus cinnamomeus
    # Count: 6
    Date:
    Observer: Karen Warner
    Location: Arenal Observatory Lodge
  22. Ornate Hawk-Eagle Spizaetus ornatus
    # Count: 2
    Date:
    Observer: Anonymous eBirder
    Location: Arenal Observatory Lodge
  23. Green Shrike-Vireo Vireolanius pulchellus
    # Count: 1
    Date:
    Observer: Ricardo Borges
    Location: Arenal Observatory Lodge
  24. Northern Beardless-Tyrannulet Camptostoma imberbe
    # Count: 1
    Date:
    Observer: Marcus Witmer
    Location: Arenal Observatory Lodge
  25. Common Potoo Nyctibius griseus
    # Count: 1
    Date:
    Observer: David Youker
    Location: Arenal Observatory Lodge
  26. Black-and-white Owl Strix nigrolineata
    # Count: 3
    Date:
    Observer: Diego Quesada
    Location: Arenal Observatory Lodge
  27. Common Nighthawk Chordeiles minor
    # Count: 4
    Date:
    Observer: Daniel Schneider
    Location: Arenal Observatory Lodge
  28. Black-breasted Wood-Quail Odontophorus leucolaemus
    # Count: 3
    Date:
    Observer: Kenny Frisch
    Location: Arenal Observatory Lodge
  29. Chestnut-capped Brushfinch Arremon brunneinucha
    # Count: 2
    Date:
    Observer: Louise Yoder
    Location: Arenal Observatory Lodge
  30. Lineated Foliage-gleaner Syndactyla subalaris
    # Count: 1
    Date:
    Observer: David Leonard
    Location: Arenal Observatory Lodge
  31. Fawn-throated Foliage-gleaner Automolus cervinigularis
    # Count: 4
    Date:
    Observer: Mark Wigglesworth
    Location: Arenal Observatory Lodge
  32. White-flanked Antwren Myrmotherula axillaris
    # Count: 2
    Date:
    Observer: David Leonard
    Location: Arenal Observatory Lodge
  33. Black-headed Antthrush Formicarius nigricapillus
    # Count: 9
    Date:
    Observer: N A
    Location: Arenal Observatory Lodge
  34. Ochre-bellied Flycatcher Mionectes oleagineus
    # Count: 6
    Date:
    Observer: Michael Orf
    Location: Arenal Observatory Lodge
  35. Lattice-tailed Trogon Trogon clathratus
    # Count: 2
    Date:
    Observer: Raúl Obregón
    Location: Arenal Observatory Lodge
  36. Gray-capped Flycatcher Myiozetetes granadensis
    # Count: 12
    Date:
    Observer: Ethan Landreville
    Location: Arenal Observatory Lodge
  37. Black-striped Sparrow Arremonops conirostris
    # Count: 10
    Date:
    Observer: Brennan Landreville
    Location: Arenal Observatory Lodge
  38. Cape May Warbler Setophaga tigrina
    # Count: 5
    Date:
    Observer: Brennan Landreville
    Location: Arenal Observatory Lodge
  39. Red-legged Honeycreeper Cyanerpes cyaneus
    # Count: 35
    Date:
    Observer: Brennan Landreville
    Location: Arenal Observatory Lodge
  40. Olivaceous Woodcreeper Sittasomus griseicapillus
    # Count: 1
    Date:
    Observer: Jose Pablo Castillo
    Location: Arenal Observatory Lodge
  41. Slate-colored Grosbeak Saltator grossus
    # Count: 7
    Date:
    Observer: Julia Flesaker
    Location: Arenal Observatory Lodge
  42. Black-faced Antthrush Formicarius analis
    # Count: 1
    Date:
    Observer: Daniel Restrepo (5-22 Fotografía Biodiversa)
    Location: Arenal Observatory Lodge
  43. Rufous-browed Peppershrike Cyclarhis gujanensis
    # Count: 1
    Date:
    Observer: Daniel Restrepo (5-22 Fotografía Biodiversa)
    Location: Arenal Observatory Lodge
  44. Mealy Parrot Amazona farinosa
    # Count: 12
    Date:
    Observer: Julia Flesaker
    Location: Arenal Observatory Lodge
  45. Scaly-throated Foliage-gleaner Anabacerthia variegaticeps
    # Count: 1
    Date:
    Observer: Julia Flesaker
    Location: Arenal Observatory Lodge
  46. Tropical Royal Flycatcher Onychorhynchus coronatus
    # Count: 1
    Date:
    Observer: Marshall Iliff
    Location: Arenal Observatory Lodge
  47. Ovenbird Seiurus aurocapilla
    # Count: 2
    Date:
    Observer: Marshall Iliff
    Location: Arenal Observatory Lodge
  48. Middle American Leaftosser Sclerurus mexicanus
    # Count: 2
    Date:
    Observer: Alexandra Barath
    Location: Arenal Observatory Lodge
  49. Golden-olive Woodpecker Colaptes rubiginosus
    # Count: 4
    Date:
    Observer: Peter Kondrashov
    Location: Arenal Observatory Lodge
  50. Striped Cuckoo Tapera naevia
    # Count: 2
    Date:
    Observer: Eagle-Eye Tours
    Location: Arenal Observatory Lodge
  51. Barred Forest-Falcon Micrastur ruficollis
    # Count: 2
    Date:
    Observer: Noel Ureña
    Location: Arenal Observatory Lodge
  52. Barred Hawk Morphnarchus princeps
    # Count: 3
    Date:
    Observer: Zorek Ramírez
    Location: Arenal Observatory Lodge
  53. Barn Owl Tyto alba
    # Count: 1
    Date:
    Observer: Joanne Kimura
    Location: Arenal Observatory Lodge
  54. American Kestrel Falco sparverius
    # Count: 2
    Date:
    Observer: Travis Vance
    Location: Arenal Observatory Lodge
  55. Bat Falcon Falco rufigularis
    # Count: 2
    Date:
    Observer: Néstor Villalobos Rojas
    Location: Arenal Observatory Lodge
  56. Spotted Barbtail Premnoplex brunnescens
    # Count: 2
    Date:
    Observer: Larry Therrien
    Location: Arenal Observatory Lodge
  57. Magnificent Frigatebird Fregata magnificens
    # Count: 1
    Date:
    Observer: Luis Fallas
    Location: Arenal Observatory Lodge
  58. Chestnut-backed Antbird Poliocrania exsul
    # Count: 3
    Date:
    Observer: Larry Therrien
    Location: Arenal Observatory Lodge
  59. Green Kingfisher Chloroceryle americana
    # Count: 2
    Date:
    Observer: Raúl Obregón
    Location: Arenal Observatory Lodge
  60. Yellow-green Vireo Vireo flavoviridis
    # Count: 3
    Date:
    Observer: Kenrith Carter
    Location: Arenal Observatory Lodge
  61. Black Swift Cypseloides niger
    # Count: 38
    Date:
    Observer: Mario Córdoba H.
    Location: Arenal Observatory Lodge
  62. Zone-tailed Hawk Buteo albonotatus
    # Count: 2
    Date:
    Observer: Mark Goodwin
    Location: Arenal Observatory Lodge
  63. Striped Owl Asio clamator
    # Count: 1
    Date:
    Observer: Larry Therrien
    Location: Arenal Observatory Lodge
  64. Black-headed Tody-Flycatcher Todirostrum nigriceps
    # Count: 2
    Date:
    Observer: Tom van Tilburg
    Location: Arenal Observatory Lodge
  65. Silvery-fronted Tapaculo Scytalopus argentifrons
    # Count: 1
    Date:
    Observer: Raúl Obregón
    Location: Arenal Observatory Lodge
  66. Yellow-bellied Sapsucker Sphyrapicus varius
    # Count: 2
    Date:
    Observer: Raúl Obregón
    Location: Arenal Observatory Lodge
  67. Palm Warbler Setophaga palmarum
    # Count: 1
    Date:
    Observer: Molly LeCompte
    Location: Arenal Observatory Lodge
  68. Zeledon's Antbird Hafferia zeledoni
    # Count: 6
    Date:
    Observer: José Vargas Mena
    Location: Arenal Observatory Lodge
  69. Merlin Falco columbarius
    # Count: 1
    Date:
    Observer: Mary Osborne
    Location: Arenal Observatory Lodge
  70. Collared Trogon Trogon collaris
    # Count: 5
    Date:
    Observer: Maryll Moon
    Location: Arenal Observatory Lodge
  71. Laughing Falcon Herpetotheres cachinnans
    # Count: 3
    Date:
    Observer: Greg Ward
    Location: Arenal Observatory Lodge
  72. Fasciated Tiger-Heron Tigrisoma fasciatum
    # Count: 2
    Date:
    Observer: Lori Zabel
    Location: Arenal Observatory Lodge
  73. Peregrine Falcon Falco peregrinus
    # Count: 1
    Date:
    Observer: Jorge Gabriel Campos
    Location: Arenal Observatory Lodge
  74. Dot-winged Antwren Microrhopias quixensis
    # Count: 3
    Date:
    Observer: Qinglin Ma
    Location: Arenal Observatory Lodge
  75. Eye-ringed Flatbill Rhynchocyclus brevirostris
    # Count: 1
    Date:
    Observer: Derek Nunes
    Location: Arenal Observatory Lodge
  76. Slaty Antwren Myrmotherula schisticolor
    # Count: 6
    Date:
    Observer: Martin Gebauer
    Location: Arenal Observatory Lodge
  77. Yellowish Flycatcher Empidonax flavescens
    # Count: 2
    Date:
    Observer: Raúl Obregón
    Location: Arenal Observatory Lodge
  78. Great Black Hawk Buteogallus urubitinga
    # Count: 4
    Date:
    Observer: Héctor Bintanel Cenis
    Location: Arenal Observatory Lodge
  79. Common Yellowthroat Geothlypis trichas
    # Count: 1
    Date:
    Observer: Kirsten Abildskov
    Location: Arenal Observatory Lodge
  80. Chiriqui Quail-Dove Zentrygon chiriquensis
    # Count: 2
    Date:
    Observer: Johan Weintz Aguilar
    Location: Arenal Observatory Lodge
  81. Belted Kingfisher Megaceryle alcyon
    # Count: 1
    Date:
    Observer: Jane Bork
    Location: Arenal Observatory Lodge
  82. Lesser Nighthawk Chordeiles acutipennis
    # Count: 5
    Date:
    Observer: Christine Zihrul
    Location: Arenal Observatory Lodge
  83. Black-faced Grosbeak Caryothraustes poliogaster
    # Count: 4
    Date:
    Observer: Mike Ambrose
    Location: Arenal Observatory Lodge
  84. MacGillivray's Warbler Geothlypis tolmiei
    # Count: 1
    Date:
    Observer: Patrick Paddick
    Location: Arenal Observatory Lodge
  85. Osprey Pandion haliaetus
    # Count: 2
    Date:
    Observer: Roger Bourne
    Location: Arenal Observatory Lodge
  86. Crested Caracara Caracara plancus
    # Count: 5
    Date:
    Observer: Martina Nordstrand
    Location: Arenal Observatory Lodge
  87. Great-tailed Grackle Quiscalus mexicanus
    # Count: 25
    Date:
    Observer: Martina Nordstrand
    Location: Arenal Observatory Lodge
  88. Long-billed Starthroat Heliomaster longirostris
    # Count: 2
    Date:
    Observer: Raúl Obregón
    Location: Arenal Observatory Lodge
  89. Tawny-faced Gnatwren Microbates cinereiventris
    # Count: 6
    Date:
    Observer: Logan Anderson
    Location: Arenal Observatory Lodge
  90. Townsend's Warbler Setophaga townsendi
    # Count: 1
    Date:
    Observer: George Burruss
    Location: Arenal Observatory Lodge
  91. Roadside Hawk Rupornis magnirostris
    # Count: 3
    Date:
    Observer: Logan Anderson
    Location: Arenal Observatory Lodge
  92. Purplish-backed Quail-Dove Zentrygon lawrencii
    # Count: 4
    Date:
    Observer: Megan Kruse
    Location: Arenal Observatory Lodge
  93. Summer Tanager Piranga rubra
    # Count: 13
    Date:
    Observer: Henry Wyn-Jones
    Location: Arenal Observatory Lodge
  94. Sharpbill Oxyruncus cristatus
    # Count: 1
    Date:
    Observer: Gustavo Rojas
    Location: Arenal Observatory Lodge
  95. Plain-brown Woodcreeper Dendrocincla fuliginosa
    # Count: 5
    Date:
    Observer: kenneth reyes
    Location: Arenal Observatory Lodge
  96. Gray-cheeked Thrush Catharus minimus
    # Count: 1
    Date:
    Observer: Jorge Gabriel Campos
    Location: Arenal Observatory Lodge
  97. Kentucky Warbler Geothlypis formosa
    # Count: 2
    Date:
    Observer: Pat O'Donnell
    Location: Arenal Observatory Lodge
  98. Magnolia Warbler Setophaga magnolia
    # Count: 1
    Date:
    Observer: Blaise Hammer
    Location: Arenal Observatory Lodge
  99. Gray-breasted Martin Progne chalybea
    # Count: 30
    Date:
    Observer: Gabriel Rojas sorococas team
    Location: Arenal Observatory Lodge
  100. Yellow-headed Caracara Daptrius chimachima
    # Count: 2
    Date:
    Observer: Pablo Camacho
    Location: Arenal Observatory Lodge
  101. Black-throated Blue Warbler Setophaga caerulescens
    # Count: 2
    Date:
    Observer: Clare O'Leary
    Location: Arenal Observatory Lodge
  102. Scissor-tailed Flycatcher Tyrannus forficatus
    # Count: 1
    Date:
    Observer: Gemma Kelleher
    Location: Arenal Observatory Lodge
  103. Long-tailed Tyrant Colonia colonus
    # Count: 5
    Date:
    Observer: Jose David Villegas Mata
    Location: Arenal Observatory Lodge
  104. Gray-headed Chachalaca Ortalis cinereiceps
    # Count: 20
    Date:
    Observer: Yahaira Sibaja Arroyo.
    Location: Arenal Observatory Lodge
  105. Bare-throated Tiger-Heron Tigrisoma mexicanum
    # Count: 2
    Date:
    Observer: Jose David Villegas Mata
    Location: Arenal Observatory Lodge
  106. Scaly-throated Leaftosser Sclerurus guatemalensis
    # Count: 1
    Date:
    Observer: Néstor Villalobos Rojas
    Location: Arenal Observatory Lodge
  107. American Redstart Setophaga ruticilla
    # Count: 2
    Date:
    Observer: Luis De la O López
    Location: Arenal Observatory Lodge
  108. Mourning Dove Zenaida macroura
    # Count: 1
    Date:
    Observer: Matt Heindel
    Location: Arenal Observatory Lodge
  109. Tennessee Warbler Leiothlypis peregrina
    # Count: 42
    Date:
    Observer: Ernest Carman
    Location: Arenal Observatory Lodge
  110. Northern Schiffornis Schiffornis veraepacis
    # Count: 2
    Date:
    Observer: Noah Gibb
    Location: Arenal Observatory Lodge
  111. Barn Swallow Hirundo rustica
    # Count: 100
    Date:
    Observer: Jehudy Carballo
    Location: Arenal Observatory Lodge
  112. Northern Barred-Woodcreeper Dendrocolaptes sanctithomae
    # Count: 3
    Date:
    Observer: Esteban Mendez
    Location: Arenal Observatory Lodge
  113. Bank Swallow Riparia riparia
    # Count: 24
    Date:
    Observer: Esteban Mendez
    Location: Arenal Observatory Lodge
  114. Olive-sided Flycatcher Contopus cooperi
    # Count: 3
    Date:
    Observer: Raúl Obregón
    Location: Arenal Observatory Lodge
  115. Blue-black Grosbeak Cyanoloxia cyanoides
    # Count: 4
    Date:
    Observer: Matthew Harwood
    Location: Arenal Observatory Lodge
  116. Rufous-tailed Jacamar Galbula ruficauda
    # Count: 8
    Date:
    Observer: Matthew Harwood
    Location: Arenal Observatory Lodge
  117. Common Tody-Flycatcher Todirostrum cinereum
    # Count: 11
    Date:
    Observer: Matthew Harwood
    Location: Arenal Observatory Lodge
  118. Green Thorntail Discosura conversii
    # Count: 9
    Date:
    Observer: Dallas Levey
    Location: Arenal Observatory Lodge
  119. Coppery-headed Emerald Microchera cupreiceps
    # Count: 5
    Date:
    Observer: Dallas Levey
    Location: Arenal Observatory Lodge
  120. Plain Antvireo Dysithamnus mentalis
    # Count: 3
    Date:
    Observer: Dallas Levey
    Location: Arenal Observatory Lodge
  121. Squirrel Cuckoo Piaya cayana
    # Count: 5
    Date:
    Observer: Matthew Harwood
    Location: Arenal Observatory Lodge
  122. Ruddy Quail-Dove Geotrygon montana
    # Count: 3
    Date:
    Observer: Matthew Harwood
    Location: Arenal Observatory Lodge
  123. Green-fronted Lancebill Doryfera ludovicae
    # Count: 3
    Date:
    Observer: Matthew Harwood
    Location: Arenal Observatory Lodge
  124. Purple-crowned Fairy Heliothryx barroti
    # Count: 4
    Date:
    Observer: Gustavo Rojas
    Location: Arenal Observatory Lodge
  125. Gartered Trogon Trogon caligatus
    # Count: 4
    Date:
    Observer: Vivek Gupta
    Location: Arenal Observatory Lodge
  126. Rufous-tailed Hummingbird Amazilia tzacatl
    # Count: 40
    Date:
    Observer: Simon Kiacz
    Location: Arenal Observatory Lodge
  127. Lesser Greenlet Pachysylvia decurtata
    # Count: 20
    Date:
    Observer: Simon Kiacz
    Location: Arenal Observatory Lodge
  128. Stripe-breasted Wren Cantorchilus thoracicus
    # Count: 16
    Date:
    Observer: Simon Kiacz
    Location: Arenal Observatory Lodge
  129. Golden-crowned Warbler Basileuterus culicivorus
    # Count: 13
    Date:
    Observer: Simon Kiacz
    Location: Arenal Observatory Lodge
  130. Carmiol's Tanager Chlorothraupis carmioli
    # Count: 40
    Date:
    Observer: Simon Kiacz
    Location: Arenal Observatory Lodge
  131. Shining Honeycreeper Cyanerpes lucidus
    # Count: 12
    Date:
    Observer: Simon Kiacz
    Location: Arenal Observatory Lodge
  132. Green Honeycreeper Chlorophanes spiza
    # Count: 16
    Date:
    Observer: Simon Kiacz
    Location: Arenal Observatory Lodge
  133. Bare-necked Umbrellabird Cephalopterus glabricollis
    # Count: 2
    Date:
    Observer: Stephanie Lopez
    Location: Arenal Observatory Lodge
  134. Golden-bellied Flycatcher Myiodynastes hemichrysus
    # Count: 4
    Date:
    Observer: Paul Conover
    Location: Arenal Observatory Lodge
  135. Cinnamon Woodpecker Celeus loricatus
    # Count: 2
    Date:
    Observer: Alex Ed Jara Cerdas
    Location: Arenal Observatory Lodge
  136. Sunbittern Eurypyga helias
    # Count: 2
    Date:
    Observer: Ruth Torres Medina
    Location: Arenal Observatory Lodge
  137. Bright-rumped Attila Attila spadiceus
    # Count: 12
    Date:
    Observer: JACOB STASSO
    Location: Arenal Observatory Lodge
  138. Clay-colored Thrush Turdus grayi
    # Count: 100
    Date:
    Observer: Ramachandran Narayan
    Location: Arenal Observatory Lodge
  139. Uniform Crake Amaurolimnas concolor
    # Count: 1
    Date:
    Observer: Ian Batterman
    Location: Arenal Observatory Lodge
  140. Russet-naped Wood-Rail Aramides albiventris
    # Count: 3
    Date:
    Observer: Ian Batterman
    Location: Arenal Observatory Lodge
  141. Lanceolated Monklet Micromonacha lanceolata
    # Count: 1
    Date:
    Observer: Anthony Arce
    Location: Arenal Observatory Lodge
  142. Lineated Woodpecker Dryocopus lineatus
    # Count: 4
    Date:
    Observer: Jose Pablo Rosales
    Location: Arenal Observatory Lodge
  143. Little Tinamou Crypturellus soui
    # Count: 3
    Date:
    Observer: Arenal Observatory Lodge Aves
    Location: Arenal Observatory Lodge
  144. Mangrove Cuckoo Coccyzus minor
    # Count: 1
    Date:
    Observer: Hugh Speirs
    Location: Arenal Observatory Lodge
  145. Collared Plover Anarhynchus collaris
    # Count: 1
    Date:
    Observer: Hugh Speirs
    Location: Arenal Observatory Lodge
  146. Blue Grosbeak Passerina caerulea
    # Count: 1
    Date:
    Observer: Hugh Speirs
    Location: Arenal Observatory Lodge
  147. White-collared Manakin Manacus candei
    # Count: 15
    Date:
    Observer: David Crexcrex
    Location: Arenal Observatory Lodge
  148. Great Tinamou Tinamus major
    # Count: 2
    Date:
    Observer: Jesse Anderson
    Location: Arenal Observatory Lodge
  149. Bicolored Hawk Accipiter bicolor
    # Count: 2
    Date:
    Observer: Gabriel Rojas sorococas team
    Location: Arenal Observatory Lodge
  150. Crowned Woodnymph Thalurania colombica
    # Count: 8
    Date:
    Observer: David M. Bell
    Location: Arenal Observatory Lodge
  151. Slaty-tailed Trogon Trogon massena
    # Count: 4
    Date:
    Observer: David M. Bell
    Location: Arenal Observatory Lodge
  152. Yellow-bellied Elaenia Elaenia flavogaster
    # Count: 8
    Date:
    Observer: David M. Bell
    Location: Arenal Observatory Lodge
  153. Piratic Flycatcher Legatus leucophaius
    # Count: 8
    Date:
    Observer: David M. Bell
    Location: Arenal Observatory Lodge
  154. Torrent Tyrannulet Serpophaga cinerea
    # Count: 2
    Date:
    Observer: Howard Shapiro
    Location: Arenal Observatory Lodge
  155. Bananaquit Coereba flaveola
    # Count: 30
    Date:
    Observer: Rajan Rao
    Location: Arenal Observatory Lodge
  156. Olivaceous Piculet Picumnus olivaceus
    # Count: 2
    Date:
    Observer: Steve Popple
    Location: Arenal Observatory Lodge
  157. Chestnut-sided Warbler Setophaga pensylvanica
    # Count: 30
    Date:
    Observer: Marcus Chapman
    Location: Arenal Observatory Lodge
  158. Western Wood-Pewee Contopus sordidulus
    # Count: 11
    Date:
    Observer: Jim Parrish
    Location: Arenal Observatory Lodge
  159. Brown-capped Tyrannulet Ornithion brunneicapillus
    # Count: 1
    Date:
    Observer: Disha Budhraja
    Location: Arenal Observatory Lodge
  160. Crested Guan Penelope purpurascens
    # Count: 25
    Date:
    Observer: Sean MInnick
    Location: Arenal Observatory Lodge
  161. White Hawk Pseudastur albicollis
    # Count: 4
    Date:
    Observer: Marjolein and Pete Lewis
    Location: Arenal Observatory Lodge
  162. Red-headed Barbet Eubucco bourcierii
    # Count: 2
    Date:
    Observer: Jorge Monge Solis
    Location: Arenal Observatory Lodge
  163. Rufous Mourner Rhytipterna holerythra
    # Count: 4
    Date:
    Observer: Phil Dunn
    Location: Arenal Observatory Lodge
  164. Bicolored Antbird Gymnopithys bicolor
    # Count: 18
    Date:
    Observer: Luke Seitz
    Location: Arenal Observatory Lodge
  165. Black-thighed Grosbeak Pheucticus tibialis
    # Count: 2
    Date:
    Observer: Gabriel Rojas sorococas team
    Location: Arenal Observatory Lodge
  166. Yellow-breasted Chat Icteria virens
    # Count: 1
    Date:
    Observer: Raúl Obregón
    Location: Arenal Observatory Lodge
  167. White-lined Tanager Tachyphonus rufus
    # Count: 4
    Date:
    Observer: Nico Stuurman
    Location: Arenal Observatory Lodge
  168. Pale-vented Thrush Turdus obsoletus
    # Count: 6
    Date:
    Observer: Julien Amsellem
    Location: Arenal Observatory Lodge
  169. Rufous-vented Ground-Cuckoo Neomorphus geoffroyi
    # Count: 2
    Date:
    Observer: Arenal Observatory Lodge Aves
    Location: Arenal Observatory Lodge
  170. Black-faced Solitaire Myadestes melanops
    # Count: 4
    Date:
    Observer: Julien Amsellem
    Location: Arenal Observatory Lodge
  171. Yellow-rumped Warbler Setophaga coronata
    # Count: 5
    Date:
    Observer: Julien Amsellem
    Location: Arenal Observatory Lodge
  172. Cinnamon-bellied Saltator Saltator grandis
    # Count: 7
    Date:
    Observer: Julien Amsellem
    Location: Arenal Observatory Lodge
  173. Yellow-billed Cacique Amblycercus holosericeus
    # Count: 3
    Date:
    Observer: Christopher Cline
    Location: Arenal Observatory Lodge
  174. Buff-fronted Quail-Dove Zentrygon costaricensis
    # Count: 1
    Date:
    Observer: Jessy Lopez Herra
    Location: Arenal Observatory Lodge
  175. Spotted Antbird Hylophylax naevioides
    # Count: 20
    Date:
    Observer: Luke Seitz
    Location: Arenal Observatory Lodge
  176. Ocellated Antbird Phaenostictus mcleannani
    # Count: 12
    Date:
    Observer: Luke Seitz
    Location: Arenal Observatory Lodge
  177. Chuck-will's-widow Antrostomus carolinensis
    # Count: 1
    Date:
    Observer: Marcel Holyoak
    Location: Arenal Observatory Lodge
  178. Broad-billed Motmot Electron platyrhynchum
    # Count: 9
    Date:
    Observer: Pieter Westra
    Location: Arenal Observatory Lodge
  179. Neotropic Cormorant Nannopterum brasilianum
    # Count: 220
    Date:
    Observer: Gyorgy Szimuly
    Location: Arenal Observatory Lodge
  180. Bay Wren Cantorchilus nigricapillus
    # Count: 8
    Date:
    Observer: liz cieszynski
    Location: Arenal Observatory Lodge
  181. White Ibis Eudocimus albus
    # Count: 18
    Date:
    Observer: Sherry Lane
    Location: Arenal Observatory Lodge
  182. Hepatic Tanager Piranga flava
    # Count: 7
    Date:
    Observer: Mike Ambrose
    Location: Arenal Observatory Lodge
  183. Black-cowled Oriole Icterus prosthemelas
    # Count: 6
    Date:
    Observer: Gabriel Rojas sorococas team
    Location: Arenal Observatory Lodge
  184. Olive-backed Quail-Dove Leptotrygon veraguensis
    # Count: 1
    Date:
    Observer: Patti Parziale
    Location: Arenal Observatory Lodge
  185. Speckled Tanager Ixothraupis guttata
    # Count: 4
    Date:
    Observer: Steve Van Winkle
    Location: Arenal Observatory Lodge
  186. Red-faced Spinetail Cranioleuca erythrops
    # Count: 2
    Date:
    Observer: Rob Kasameyer
    Location: Arenal Observatory Lodge
  187. Louisiana Waterthrush Parkesia motacilla
    # Count: 3
    Date:
    Observer: Rob Kasameyer
    Location: Arenal Observatory Lodge
  188. Tawny-crowned Greenlet Tunchiornis ochraceiceps
    # Count: 8
    Date:
    Observer: Anthony Arce
    Location: Arenal Observatory Lodge
  189. Least Grebe Tachybaptus dominicus
    # Count: 2
    Date:
    Observer: varun tipnis
    Location: Arenal Observatory Lodge
  190. Stripe-throated Hermit Phaethornis striigularis
    # Count: 7
    Date:
    Observer: Marty Freeland
    Location: Arenal Observatory Lodge
  191. Boat-billed Flycatcher Megarynchus pitangua
    # Count: 9
    Date:
    Observer: Marty Freeland
    Location: Arenal Observatory Lodge
  192. White-breasted Wood-Wren Henicorhina leucosticta
    # Count: 22
    Date:
    Observer: Marty Freeland
    Location: Arenal Observatory Lodge
  193. Western Kingbird Tyrannus verticalis
    # Count: 1
    Date:
    Observer: Anthony Arce
    Location: Arenal Observatory Lodge
  194. Anhinga Anhinga anhinga
    # Count: 50
    Date:
    Observer: Juan Diego Vargas
    Location: Arenal Observatory Lodge
  195. Smoky-brown Woodpecker Dryobates fumigatus
    # Count: 4
    Date:
    Observer: Erik Ostrum
    Location: Arenal Observatory Lodge
  196. Streak-crowned Antvireo Dysithamnus striaticeps
    # Count: 8
    Date:
    Observer: Luke Berg
    Location: Arenal Observatory Lodge
  197. Wedge-billed Woodcreeper Glyphorynchus spirurus
    # Count: 18
    Date:
    Observer: Luke Berg
    Location: Arenal Observatory Lodge
  198. Sulphur-rumped Flycatcher Myiobius sulphureipygius
    # Count: 6
    Date:
    Observer: Luke Berg
    Location: Arenal Observatory Lodge
  199. Nightingale Wren Microcerculus philomela
    # Count: 6
    Date:
    Observer: Luke Berg
    Location: Arenal Observatory Lodge
  200. Olive-throated Parakeet Eupsittula nana
    # Count: 30
    Date:
    Observer: Alastair McCandless
    Location: Arenal Observatory Lodge
  201. Little Blue Heron Egretta caerulea
    # Count: 8
    Date:
    Observer: Carrie Miller
    Location: Arenal Observatory Lodge
  202. Spotted Woodcreeper Xiphorhynchus erythropygius
    # Count: 10
    Date:
    Observer: Antariksh Bothale
    Location: Arenal Observatory Lodge
  203. Black-crested Coquette Lophornis helenae
    # Count: 8
    Date:
    Observer: Juan Diego Vargas
    Location: Arenal Observatory Lodge
  204. Mistletoe Tyrannulet Zimmerius parvus
    # Count: 5
    Date:
    Observer: Tomohide Cho
    Location: Arenal Observatory Lodge
  205. Buff-rumped Warbler Myiothlypis fulvicauda
    # Count: 14
    Date:
    Observer: David Blevins
    Location: Arenal Observatory Lodge
  206. Eastern Wood-Pewee Contopus virens
    # Count: 14
    Date:
    Observer: Tyler Ficker
    Location: Arenal Observatory Lodge
  207. Muscovy Duck Cairina moschata
    # Count: 4
    Date:
    Observer: Barrett Lawson
    Location: Arenal Observatory Lodge
  208. Canada Warbler Cardellina canadensis
    # Count: 6
    Date:
    Observer: James Maley
    Location: Arenal Observatory Lodge
  209. Gray-chested Dove Leptotila cassinii
    # Count: 5
    Date:
    Observer: Pat O'Donnell
    Location: Arenal Observatory Lodge
  210. White-fronted Nunbird Monasa morphoeus
    # Count: 8
    Date:
    Observer: Pat O'Donnell
    Location: Arenal Observatory Lodge
  211. Tawny-capped Euphonia Euphonia anneae
    # Count: 10
    Date:
    Observer: Sam Heinrich
    Location: Arenal Observatory Lodge
  212. White-throated Flycatcher Empidonax albigularis
    # Count: 1
    Date:
    Observer: James Boccia
    Location: Arenal Observatory Lodge
  213. Mottled Owl Strix virgata
    # Count: 2
    Date:
    Observer: Allison Miller
    Location: Arenal Observatory Lodge
  214. Tree Swallow Tachycineta bicolor
    # Count: 30
    Date:
    Observer: Néstor Villalobos Rojas
    Location: Arenal Observatory Lodge
  215. Violet-headed Hummingbird Klais guimeti
    # Count: 12
    Date:
    Observer: Tyler Wenzel
    Location: Arenal Observatory Lodge
  216. White-collared Swift Streptoprocne zonaris
    # Count: 300
    Date:
    Observer: Johan Weintz Aguilar
    Location: Arenal Observatory Lodge
  217. Red-throated Ant-Tanager Habia fuscicauda
    # Count: 10
    Date:
    Observer: Martin Gebauer
    Location: Arenal Observatory Lodge
  218. Mountain Thrush Turdus plebejus
    # Count: 3
    Date:
    Observer: Cameron Chevalier
    Location: Arenal Observatory Lodge
  219. White-throated Shrike-Tanager Lanio leucothorax
    # Count: 8
    Date:
    Observer: Christopher Moser-Purdy
    Location: Arenal Observatory Lodge
  220. Short-tailed Hawk Buteo brachyurus
    # Count: 4
    Date:
    Observer: Gabriel Rojas sorococas team
    Location: Arenal Observatory Lodge
  221. Alder Flycatcher Empidonax alnorum
    # Count: 1
    Date:
    Observer: Su Li
    Location: Arenal Observatory Lodge
  222. White-whiskered Puffbird Malacoptila panamensis
    # Count: 1
    Date:
    Observer: Giovanni Delgado
    Location: Arenal Observatory Lodge
  223. Snail Kite Rostrhamus sociabilis
    # Count: 1
    Date:
    Observer: Johan Weintz Aguilar
    Location: Arenal Observatory Lodge
  224. Blue-winged Warbler Vermivora cyanoptera
    # Count: 1
    Date:
    Observer: Randy Schietzelt
    Location: Arenal Observatory Lodge
  225. Green Ibis Mesembrinibis cayennensis
    # Count: 5
    Date:
    Observer: Ben Meredyk
    Location: Arenal Observatory Lodge
  226. Black Phoebe Sayornis nigricans
    # Count: 5
    Date:
    Observer: D T
    Location: Arenal Observatory Lodge
  227. Blackpoll Warbler Setophaga striata
    # Count: 1
    Date:
    Observer: Justin Della Mora Duquette
    Location: Arenal Observatory Lodge
  228. Rufous Motmot Baryphthengus martii
    # Count: 4
    Date:
    Observer: Rose Ann Rowlett
    Location: Arenal Observatory Lodge
  229. Black-cheeked Woodpecker Melanerpes pucherani
    # Count: 12
    Date:
    Observer: Rose Ann Rowlett
    Location: Arenal Observatory Lodge
  230. Dusky-capped Flycatcher Myiarchus tuberculifer
    # Count: 10
    Date:
    Observer: Rose Ann Rowlett
    Location: Arenal Observatory Lodge
  231. Sulphur-bellied Flycatcher Myiodynastes luteiventris
    # Count: 10
    Date:
    Observer: Rose Ann Rowlett
    Location: Arenal Observatory Lodge
  232. Rufous-browed Tyrannulet Phylloscartes superciliaris
    # Count: 2
    Date:
    Observer: James Hammersley
    Location: Arenal Observatory Lodge
  233. Pacific Screech-Owl Megascops cooperi
    # Count: 4
    Date:
    Observer:
    Location: Arenal Observatory Lodge
  234. Olive-backed Euphonia Euphonia gouldi
    # Count: 10
    Date:
    Observer:
    Location: Arenal Observatory Lodge
  235. Black-and-white Warbler Mniotilta varia
    # Count: 5
    Date:
    Observer: Jorge luis Soto obando
    Location: Arenal Observatory Lodge
  236. Cedar Waxwing Bombycilla cedrorum
    # Count: 3
    Date:
    Observer: Jessica D
    Location: Arenal Observatory Lodge
  237. Snowy Egret Egretta thula
    # Count: 22
    Date:
    Observer: Jessica D
    Location: Arenal Observatory Lodge
  238. Buff-throated Saltator Saltator maximus
    # Count: 10
    Date:
    Observer: Mariela Varela
    Location: Arenal Observatory Lodge
  239. Yellow Tyrannulet Capsiempis flaveola
    # Count: 4
    Date:
    Observer: Rich Hoyer
    Location: Arenal Observatory Lodge
  240. Wood Thrush Hylocichla mustelina
    # Count: 12
    Date:
    Observer: Wieland Feuerabendt
    Location: Arenal Observatory Lodge
  241. Keel-billed Toucan Ramphastos sulfuratus
    # Count: 15
    Date:
    Observer: Indira Calvo Vargas
    Location: Arenal Observatory Lodge
  242. Worm-eating Warbler Helmitheros vermivorum
    # Count: 2
    Date:
    Observer: Tony Crilley
    Location: Arenal Observatory Lodge
  243. Ochre-breasted Antpitta Grallaricula flavirostris
    # Count: 1
    Date:
    Observer: Tony Crilley
    Location: Arenal Observatory Lodge
  244. Violet-green Swallow Tachycineta thalassina
    # Count: 1
    Date:
    Observer: Adriana Dinu
    Location: Arenal Observatory Lodge
  245. American Dipper Cinclus mexicanus
    # Count: 2
    Date:
    Observer: Ferit Başbuğ
    Location: Arenal Observatory Lodge
  246. Spectacled Owl Pulsatrix perspicillata
    # Count: 3
    Date:
    Observer: Bob Neyer
    Location: Arenal Observatory Lodge
  247. Yellow-eared Toucanet Selenidera spectabilis
    # Count: 6
    Date:
    Observer: Jorge Monge Solis
    Location: Arenal Observatory Lodge
  248. Middle American Screech-Owl Megascops guatemalae
    # Count: 1
    Date:
    Observer: Arenal Observatory Lodge Aves
    Location: Arenal Observatory Lodge
  249. White-shouldered Tanager Loriotus luctuosus
    # Count: 5
    Date:
    Observer: Bastian Mayer
    Location: Arenal Observatory Lodge
  250. Barred Parakeet Bolborhynchus lineola
    # Count: 6
    Date:
    Observer: Ernest Carman
    Location: Arenal Observatory Lodge
  251. Blue-and-gold Tanager Bangsia arcaei
    # Count: 5
    Date:
    Observer: Dennis Rich
    Location: Arenal Observatory Lodge
  252. Northern Rough-winged Swallow Stelgidopteryx serripennis
    # Count: 52
    Date:
    Observer: Nancy Wenzel
    Location: Arenal Observatory Lodge
  253. Semiplumbeous Hawk Leucopternis semiplumbeus
    # Count: 3
    Date:
    Observer: Julian Hough
    Location: Arenal Observatory Lodge
  254. Northern Bentbill Oncostoma cinereigulare
    # Count: 2
    Date:
    Observer: Julian Hough
    Location: Arenal Observatory Lodge
  255. Collared Forest-Falcon Micrastur semitorquatus
    # Count: 2
    Date:
    Observer: Mason Maron
    Location: Arenal Observatory Lodge
  256. White-throated Spadebill Platyrinchus mystaceus
    # Count: 4
    Date:
    Observer: Rohan van Twest
    Location: Arenal Observatory Lodge
  257. Cooper's Hawk Accipiter cooperii
    # Count: 2
    Date:
    Observer: Bonnie Clarfield-Bylin
    Location: Arenal Observatory Lodge
  258. Painted Bunting Passerina ciris
    # Count: 1
    Date:
    Observer: Kim Risen
    Location: Arenal Observatory Lodge
  259. Tropical Mockingbird Mimus gilvus
    # Count: 3
    Date:
    Observer: Juan Alberto Palma Chaves
    Location: Arenal Observatory Lodge
  260. Scaly-breasted Hummingbird Phaeochroa cuvierii
    # Count: 15
    Date:
    Observer: Michael Hoit
    Location: Arenal Observatory Lodge
  261. Orange-billed Sparrow Arremon aurantiirostris
    # Count: 11
    Date:
    Observer: Michael Hoit
    Location: Arenal Observatory Lodge
  262. Western Woodhaunter Automolus virgatus
    # Count: 3
    Date:
    Observer: Jorge Gabriel Campos
    Location: Arenal Observatory Lodge
  263. Black-headed Trogon Trogon melanocephalus
    # Count: 1
    Date:
    Observer: Jorge Gabriel Campos
    Location: Arenal Observatory Lodge
  264. Black-crowned Tityra Tityra inquisitor
    # Count: 6
    Date:
    Observer: Kenneth Matarrita G
    Location: Arenal Observatory Lodge
  265. Rose-breasted Grosbeak Pheucticus ludovicianus
    # Count: 10
    Date:
    Observer: Greg Greene
    Location: Arenal Observatory Lodge
  266. Baltimore Oriole Icterus galbula
    # Count: 50
    Date:
    Observer: lori herfurth
    Location: Arenal Observatory Lodge
  267. Scarlet Tanager Piranga olivacea
    # Count: 10
    Date:
    Observer: Gabriel Rojas sorococas team
    Location: Arenal Observatory Lodge
  268. Shiny Cowbird Molothrus bonariensis
    # Count: 12
    Date:
    Observer: Elliott De St. Croix
    Location: Arenal Observatory Lodge
  269. Mississippi Kite Ictinia mississippiensis
    # Count: 200
    Date:
    Observer: Susan Myers
    Location: Arenal Observatory Lodge
  270. Tiny Hawk Microspizias superciliosus
    # Count: 2
    Date:
    Observer: Federico Chacón
    Location: Arenal Observatory Lodge
  271. Least Flycatcher Empidonax minimus
    # Count: 3
    Date:
    Observer: Ernest Carman
    Location: Arenal Observatory Lodge
  272. Veery Catharus fuscescens
    # Count: 2
    Date:
    Observer: Arenal Observatory Lodge Aves
    Location: Arenal Observatory Lodge
  273. Red-eyed Vireo Vireo olivaceus
    # Count: 110
    Date:
    Observer: Ernest Carman
    Location: Arenal Observatory Lodge
  274. Swainson's Thrush Catharus ustulatus
    # Count: 18
    Date:
    Observer: Ernest Carman
    Location: Arenal Observatory Lodge
  275. Keel-billed Motmot Electron carinatum
    # Count: 4
    Date:
    Observer: Greg Homel
    Location: Arenal Observatory Lodge
  276. Russet Antshrike Thamnistes anabatinus
    # Count: 16
    Date:
    Observer: Jorge Gabriel Campos
    Location: Arenal Observatory Lodge
  277. Lovely Cotinga Cotinga amabilis
    # Count: 2
    Date:
    Observer: Sunil Zaveri
    Location: Arenal Observatory Lodge
  278. Gray-breasted Crake Laterallus exilis
    # Count: 1
    Date:
    Observer: Sergio Maximo
    Location: Arenal Observatory Lodge
  279. Prong-billed Barbet Semnornis frantzii
    # Count: 11
    Date:
    Observer: Greg Ruetten
    Location: Arenal Observatory Lodge
  280. Northern Emerald-Toucanet Aulacorhynchus prasinus
    # Count: 3
    Date:
    Observer: Greg Ruetten
    Location: Arenal Observatory Lodge
  281. Slate-headed Tody-Flycatcher Poecilotriccus sylvia
    # Count: 3
    Date:
    Observer: Nilesh K
    Location: Arenal Observatory Lodge
  282. Olive-crowned Yellowthroat Geothlypis semiflava
    # Count: 2
    Date:
    Observer: Luis Barrantes Rodriguez
    Location: Arenal Observatory Lodge
  283. Collared Aracari Pteroglossus torquatus
    # Count: 25
    Date:
    Observer: Joe Tuvell
    Location: Arenal Observatory Lodge
  284. Magenta-throated Woodstar Philodice bryantae
    # Count: 2
    Date:
    Observer: Ferran López Sanz
    Location: Arenal Observatory Lodge
  285. Crested Owl Lophostrix cristata
    # Count: 3
    Date:
    Observer: Joe Tuvell
    Location: Arenal Observatory Lodge
  286. Blue-vented Hummingbird Saucerottia hoffmanni
    # Count: 13
    Date:
    Observer: Joe Tuvell
    Location: Arenal Observatory Lodge
  287. Brown Violetear Colibri delphinae
    # Count: 8
    Date:
    Observer: Jehudy Carballo
    Location: Arenal Observatory Lodge
  288. Northern Black-throated Trogon Trogon tenellus
    # Count: 3
    Date:
    Observer: Olivier Esquivel
    Location: Arenal Observatory Lodge
  289. Yellow-faced Grassquit Tiaris olivaceus
    # Count: 50
    Date:
    Observer: Charles Sismondo
    Location: Arenal Observatory Lodge
  290. Green Heron Butorides virescens
    # Count: 2
    Date:
    Observer: Jeff Peters
    Location: Arenal Observatory Lodge
  291. Western Cattle Egret Bubulcus ibis
    # Count: 120
    Date:
    Observer: Anthony Arce
    Location: Arenal Observatory Lodge
  292. Northern Tropical Pewee Contopus bogotensis
    # Count: 8
    Date:
    Observer: Michael Simm
    Location: Arenal Observatory Lodge
  293. Brown Pelican Pelecanus occidentalis
    # Count: 3
    Date:
    Observer: Rowan Young-McMurchie
    Location: Arenal Observatory Lodge
  294. Northern Waterthrush Parkesia noveboracensis
    # Count: 6
    Date:
    Observer: Marky Mutchler
    Location: Arenal Observatory Lodge
  295. Band-tailed Barbthroat Threnetes ruckeri
    # Count: 2
    Date:
    Observer: Folkert Kottman
    Location: Arenal Observatory Lodge
  296. Black-and-yellow Tanager Chrysothlypis chrysomelas
    # Count: 20
    Date:
    Observer: Néstor Villalobos Rojas
    Location: Arenal Observatory Lodge
  297. Ringed Kingfisher Megaceryle torquata
    # Count: 3
    Date:
    Observer: Chuck Jensen
    Location: Arenal Observatory Lodge
  298. White-fronted Parrot Amazona albifrons
    # Count: 20
    Date:
    Observer: Dale Forbes
    Location: Arenal Observatory Lodge
  299. King Vulture Sarcoramphus papa
    # Count: 5
    Date:
    Observer: Chase Caldwell
    Location: Arenal Observatory Lodge
  300. Great Potoo Nyctibius grandis
    # Count: 2
    Date:
    Observer: Arenal Observatory Lodge Aves
    Location: Arenal Observatory Lodge
  301. Thick-billed Seed-Finch Sporophila funerea
    # Count: 16
    Date:
    Observer: Kathy Hamre
    Location: Arenal Observatory Lodge
  302. Black Hawk-Eagle Spizaetus tyrannus
    # Count: 4
    Date:
    Observer: Jen Sanford
    Location: Arenal Observatory Lodge
  303. Great Kiskadee Pitangus sulphuratus
    # Count: 30
    Date:
    Observer: Jen Sanford
    Location: Arenal Observatory Lodge
  304. Social Flycatcher Myiozetetes similis
    # Count: 30
    Date:
    Observer: Jen Sanford
    Location: Arenal Observatory Lodge
  305. Canebrake Wren Cantorchilus zeledoni
    # Count: 2
    Date:
    Observer: Jen Sanford
    Location: Arenal Observatory Lodge
  306. Variable Seedeater Sporophila corvina
    # Count: 50
    Date:
    Observer: Jen Sanford
    Location: Arenal Observatory Lodge
  307. Morelet's Seedeater Sporophila morelleti
    # Count: 20
    Date:
    Observer: Jen Sanford
    Location: Arenal Observatory Lodge
  308. Blue-winged Teal Spatula discors
    # Count: 3
    Date:
    Observer: Beatriz Hernandez
    Location: Arenal Observatory Lodge
  309. Stripe-tailed Hummingbird Eupherusa eximia
    # Count: 3
    Date:
    Observer: Mike Bizeau
    Location: Arenal Observatory Lodge
  310. Killdeer Charadrius vociferus
    # Count: 2
    Date:
    Observer: Angie Howell
    Location: Arenal Observatory Lodge
  311. Hooded Warbler Setophaga citrina
    # Count: 2
    Date:
    Observer: Larry Theller
    Location: Arenal Observatory Lodge
  312. Bronzy Hermit Glaucis aeneus
    # Count: 2
    Date:
    Observer: Andrew Dreelin
    Location: Arenal Observatory Lodge
  313. Yellow-throated Euphonia Euphonia hirundinacea
    # Count: 21
    Date:
    Observer: Greg Homel
    Location: Arenal Observatory Lodge
  314. Hoffmann's Woodpecker Melanerpes hoffmannii
    # Count: 9
    Date:
    Observer: David Mitchell
    Location: Arenal Observatory Lodge
  315. White-vented Euphonia Euphonia minuta
    # Count: 5
    Date:
    Observer: David Mitchell
    Location: Arenal Observatory Lodge
  316. Band-tailed Pigeon Patagioenas fasciata
    # Count: 350
    Date:
    Observer: Pat O'Donnell
    Location: Arenal Observatory Lodge
  317. Southern Rough-winged Swallow Stelgidopteryx ruficollis
    # Count: 50
    Date:
    Observer: Richard Dale
    Location: Arenal Observatory Lodge
  318. Tricolored Heron Egretta tricolor
    # Count: 2
    Date:
    Observer: Harold Elder
    Location: Arenal Observatory Lodge
  319. Philadelphia Vireo Vireo philadelphicus
    # Count: 7
    Date:
    Observer: Anthony Arce
    Location: Arenal Observatory Lodge
  320. Long-tailed Woodcreeper Deconychura longicauda
    # Count: 1
    Date:
    Observer: Diego Quesada
    Location: Arenal Observatory Lodge
  321. Greater Yellowlegs Tringa melanoleuca
    # Count: 1
    Date:
    Observer: Jake Vinsel
    Location: Arenal Observatory Lodge
  322. Orange-chinned Parakeet Brotogeris jugularis
    # Count: 100
    Date:
    Observer: Dave Minnich
    Location: Arenal Observatory Lodge
  323. Tufted Flycatcher Mitrephanes phaeocercus
    # Count: 3
    Date:
    Observer: Allan Vargas Gomez
    Location: Arenal Observatory Lodge
  324. Purple-throated Mountain-gem Lampornis calolaemus
    # Count: 10
    Date:
    Observer: Nicola Vyvyan-Robinson
    Location: Arenal Observatory Lodge
  325. Violaceous Quail-Dove Geotrygon violacea
    # Count: 2
    Date:
    Observer: Ryan Andrews
    Location: Arenal Observatory Lodge
  326. Boat-billed Heron Cochlearius cochlearius
    # Count: 6
    Date:
    Observer: Leonie Valentine
    Location: Arenal Observatory Lodge
  327. Barred Antshrike Thamnophilus doliatus
    # Count: 4
    Date:
    Observer: Leonie Valentine
    Location: Arenal Observatory Lodge
  328. Short-tailed Nighthawk Lurocalis semitorquatus
    # Count: 2
    Date:
    Observer: Michael Curtis
    Location: Arenal Observatory Lodge
  329. Bronzed Cowbird Molothrus aeneus
    # Count: 22
    Date:
    Observer: Michael Curtis
    Location: Arenal Observatory Lodge
  330. Melodious Blackbird Dives dives
    # Count: 16
    Date:
    Observer: Michael Curtis
    Location: Arenal Observatory Lodge
  331. Central American Pygmy-Owl Glaucidium griseiceps
    # Count: 1
    Date:
    Observer: Larry Geiger
    Location: Arenal Observatory Lodge
  332. Black-capped Pygmy-Tyrant Myiornis atricapillus
    # Count: 2
    Date:
    Observer: Rich Hoyer
    Location: Arenal Observatory Lodge
  333. House Wren Troglodytes aedon
    # Count: 31
    Date:
    Observer: Sandra Ashby
    Location: Arenal Observatory Lodge
  334. Lesser Swallow-tailed Swift Panyptila cayennensis
    # Count: 4
    Date:
    Observer: Fernando del Valle
    Location: Arenal Observatory Lodge
  335. White-winged Becard Pachyramphus polychopterus
    # Count: 2
    Date:
    Observer: Javier Antonio Pérez Chaves
    Location: Arenal Observatory Lodge
  336. White-throated Crake Laterallus albigularis
    # Count: 4
    Date:
    Observer: mark whitaker
    Location: Arenal Observatory Lodge
  337. Yellow-crowned Night Heron Nyctanassa violacea
    # Count: 3
    Date:
    Observer: mark whitaker
    Location: Arenal Observatory Lodge
  338. Golden-winged Warbler Vermivora chrysoptera
    # Count: 6
    Date:
    Observer: Okamoto Keita Sin
    Location: Arenal Observatory Lodge
  339. Orchard Oriole Icterus spurius
    # Count: 4
    Date:
    Observer: Michael Leven
    Location: Arenal Observatory Lodge
  340. Yellow-throated Toucan Ramphastos ambiguus
    # Count: 21
    Date:
    Observer: Reynaldo Álvarez
    Location: Arenal Observatory Lodge
  341. Dull-mantled Antbird Sipia laemosticta
    # Count: 9
    Date:
    Observer: Reynaldo Álvarez
    Location: Arenal Observatory Lodge
  342. Gray-headed Kite Leptodon cayanensis
    # Count: 3
    Date:
    Observer: Michelle Smith
    Location: Arenal Observatory Lodge
  343. Masked Tityra Tityra semifasciata
    # Count: 12
    Date:
    Observer: Sandy Schreven
    Location: Arenal Observatory Lodge
  344. Hook-billed Kite Chondrohierax uncinatus
    # Count: 3
    Date:
    Observer: Jacques Vanheuverswyn
    Location: Arenal Observatory Lodge
  345. Red-fronted Parrotlet Touit costaricensis
    # Count: 3
    Date:
    Observer: Mourad Jabra
    Location: Arenal Observatory Lodge
  346. Great Crested Flycatcher Myiarchus crinitus
    # Count: 3
    Date:
    Observer: Mourad Jabra
    Location: Arenal Observatory Lodge
  347. Ruddy-tailed Flycatcher Terenotriccus erythrurus
    # Count: 2
    Date:
    Observer: David Blevins
    Location: Arenal Observatory Lodge
  348. Slaty-backed Forest-Falcon Micrastur mirandollei
    # Count: 1
    Date:
    Observer: Johan Fernández
    Location: Arenal Observatory Lodge
  349. White-ringed Flycatcher Conopias albovittatus
    # Count: 4
    Date:
    Observer: Heike Brieschke
    Location: Arenal Observatory Lodge
  350. Blackburnian Warbler Setophaga fusca
    # Count: 16
    Date:
    Observer: Jehudy Carballo
    Location: Arenal Observatory Lodge
  351. White-winged Dove Zenaida asiatica
    # Count: 10
    Date:
    Observer: Manuel Seda
    Location: Arenal Observatory Lodge
  352. Rufous-winged Tanager Tangara lavinia
    # Count: 5
    Date:
    Observer: Sam Scheibel
    Location: Arenal Observatory Lodge
  353. Crimson-fronted Parakeet Psittacara finschi
    # Count: 80
    Date:
    Observer: Mary Beth Stowe
    Location: Arenal Observatory Lodge
  354. Canivet's Emerald Cynanthus canivetii
    # Count: 2
    Date:
    Observer: Néstor Villalobos Rojas
    Location: Arenal Observatory Lodge
  355. Streak-headed Woodcreeper Lepidocolaptes souleyetii
    # Count: 9
    Date:
    Observer: Néstor Villalobos Rojas
    Location: Arenal Observatory Lodge
  356. Black-headed Nightingale-Thrush Catharus mexicanus
    # Count: 10
    Date:
    Observer: Ken Brunner
    Location: Arenal Observatory Lodge
  357. Yellow-winged Tanager Thraupis abbas
    # Count: 2
    Date:
    Observer: Olivier Esquivel
    Location: Arenal Observatory Lodge
  358. Scarlet Macaw Ara macao
    # Count: 3
    Date:
    Observer: Mohammed Fatoosh
    Location: Arenal Observatory Lodge
  359. Gray-breasted Wood-Wren Henicorhina leucophrys
    # Count: 4
    Date:
    Observer: Jan Pierson
    Location: Arenal Observatory Lodge
  360. Chestnut-collared Swift Streptoprocne rutila
    # Count: 40
    Date:
    Observer: Henry Cook
    Location: Arenal Observatory Lodge
  361. Tropical Parula Setophaga pitiayumi
    # Count: 10
    Date:
    Observer: Henry Cook
    Location: Arenal Observatory Lodge
  362. Purple Martin Progne subis
    # Count: 4
    Date:
    Observer: Javi Barón
    Location: Arenal Observatory Lodge
  363. Black-and-white Hawk-Eagle Spizaetus melanoleucus
    # Count: 1
    Date:
    Observer: Forrest Rowland
    Location: Arenal Observatory Lodge
  364. Purple Gallinule Porphyrio martinica
    # Count: 2
    Date:
    Observer: Nancy Redman
    Location: Arenal Observatory Lodge
  365. Great Blue Heron Ardea herodias
    # Count: 4
    Date:
    Observer: Alan & Donna McKenzie
    Location: Arenal Observatory Lodge
  366. Willow Flycatcher Empidonax traillii
    # Count: 2
    Date:
    Observer: matthew sabatine
    Location: Arenal Observatory Lodge
  367. Song Wren Cyphorhinus phaeocephalus
    # Count: 10
    Date:
    Observer: Matthias Fehlow
    Location: Arenal Observatory Lodge
  368. Red-tailed Hawk Buteo jamaicensis
    # Count: 2
    Date:
    Observer: Joel Such
    Location: Arenal Observatory Lodge
  369. Black-bellied Whistling-Duck Dendrocygna autumnalis
    # Count: 12
    Date:
    Observer: Néstor Villalobos Rojas
    Location: Arenal Observatory Lodge
  370. Bare-crowned Antbird Gymnocichla nudiceps
    # Count: 6
    Date:
    Observer: Pat O'Donnell
    Location: Arenal Observatory Lodge
  371. Black-throated Wren Pheugopedius atrogularis
    # Count: 6
    Date:
    Observer: Pat O'Donnell
    Location: Arenal Observatory Lodge
  372. Red-lored Parrot Amazona autumnalis
    # Count: 55
    Date:
    Observer: Karen Burns
    Location: Arenal Observatory Lodge
  373. Red-billed Pigeon Patagioenas flavirostris
    # Count: 70
    Date:
    Observer: Pat O'Donnell
    Location: Arenal Observatory Lodge
  374. Ruddy Ground Dove Columbina talpacoti
    # Count: 6
    Date:
    Observer: Donna Talluto
    Location: Arenal Observatory Lodge
  375. House Sparrow Passer domesticus
    # Count: 10
    Date:
    Observer: Donna Talluto
    Location: Arenal Observatory Lodge
  376. Azure-hooded Jay Cyanolyca cucullata
    # Count: 2
    Date:
    Observer: Arenal Observatory Lodge Aves
    Location: Arenal Observatory Lodge
  377. Wood Stork Mycteria americana
    # Count: 5
    Date:
    Observer: Néstor Villalobos Rojas
    Location: Arenal Observatory Lodge
  378. Sharp-shinned Hawk Accipiter striatus
    # Count: 2
    Date:
    Observer: Austin Gess
    Location: Arenal Observatory Lodge
  379. Yellow-throated Vireo Vireo flavifrons
    # Count: 5
    Date:
    Observer: Bryan Eastman
    Location: Arenal Observatory Lodge
  380. Green-breasted Mango Anthracothorax prevostii
    # Count: 7
    Date:
    Observer: Johan Fernández
    Location: Arenal Observatory Lodge
  381. Blue-throated Goldentail Chlorestes eliciae
    # Count: 12
    Date:
    Observer: Juan Diego Vargas
    Location: Arenal Observatory Lodge
  382. White-tipped Dove Leptotila verreauxi
    # Count: 18
    Date:
    Observer: Johan Nilsson
    Location: Arenal Observatory Lodge
  383. Spotted Sandpiper Actitis macularius
    # Count: 3
    Date:
    Observer: juan gonzalez valdivieso
    Location: Arenal Observatory Lodge
  384. Chimney Swift Chaetura pelagica
    # Count: 10
    Date:
    Observer: Cristian Campos solis
    Location: Arenal Observatory Lodge
  385. Bay-breasted Warbler Setophaga castanea
    # Count: 35
    Date:
    Observer: Jorge Gabriel Campos
    Location: Arenal Observatory Lodge
  386. Lesser Violetear Colibri cyanotus
    # Count: 4
    Date:
    Observer: Jessy Lopez Herra
    Location: Arenal Observatory Lodge
  387. Band-backed Wren Campylorhynchus zonatus
    # Count: 8
    Date:
    Observer: Jessy Lopez Herra
    Location: Arenal Observatory Lodge
  388. Black-headed Saltator Saltator atriceps
    # Count: 8
    Date:
    Observer: Jessy Lopez Herra
    Location: Arenal Observatory Lodge
  389. White-necked Puffbird Notharchus hyperrhynchus
    # Count: 1
    Date:
    Observer: Ariel Fonseca
    Location: Arenal Observatory Lodge
  390. Red-breasted Meadowlark Leistes militaris
    # Count: 1
    Date:
    Observer: Hesper Fang
    Location: Arenal Observatory Lodge
  391. Streaked Flycatcher Myiodynastes maculatus
    # Count: 2
    Date:
    Observer: Dan Tallman
    Location: Arenal Observatory Lodge
  392. Slaty-capped Flycatcher Leptopogon superciliaris
    # Count: 8
    Date:
    Observer: Torrey Gage-Tomlinson
    Location: Arenal Observatory Lodge
  393. Common Chlorospingus Chlorospingus flavopectus
    # Count: 12
    Date:
    Observer: Chris Rohrer
    Location: Arenal Observatory Lodge
  394. Ochraceous Wren Troglodytes ochraceus
    # Count: 4
    Date:
    Observer: Chris Rohrer
    Location: Arenal Observatory Lodge
  395. White-necked Jacobin Florisuga mellivora
    # Count: 20
    Date:
    Observer: Mark Brocklehurst
    Location: Arenal Observatory Lodge
  396. Green Hermit Phaethornis guy
    # Count: 12
    Date:
    Observer: Mark Brocklehurst
    Location: Arenal Observatory Lodge
  397. Thicket Antpitta Myrmothera dives
    # Count: 15
    Date:
    Observer: Martin Flack
    Location: Arenal Observatory Lodge
  398. Black-crowned Night Heron Nycticorax nycticorax
    # Count: 1
    Date:
    Observer: Arenal Observatory Lodge Aves
    Location: Arenal Observatory Lodge
  399. Olive-streaked Flycatcher Mionectes olivaceus
    # Count: 5
    Date:
    Observer: Anthony Arce
    Location: Arenal Observatory Lodge
  400. Pied-billed Grebe Podilymbus podiceps
    # Count: 5
    Date:
    Observer: Carlos Ureña
    Location: Arenal Observatory Lodge
  401. Harris's Hawk Parabuteo unicinctus
    # Count: 2
    Date:
    Observer: Diane Eubanks
    Location: Arenal Observatory Lodge
  402. Checker-throated Stipplethroat Epinecrophylla fulviventris
    # Count: 3
    Date:
    Observer: Kathe Goria-Hendrickson
    Location: Arenal Observatory Lodge
  403. Cabanis's Wren Cantorchilus modestus
    # Count: 2
    Date:
    Observer: Kathe Goria-Hendrickson
    Location: Arenal Observatory Lodge
  404. Blue Ground Dove Claravis pretiosa
    # Count: 2
    Date:
    Observer: Johan Fernández
    Location: Arenal Observatory Lodge
  405. Pale-vented Pigeon Patagioenas cayennensis
    # Count: 165
    Date:
    Observer: Bill Doyle
    Location: Arenal Observatory Lodge
  406. Brown Jay Psilorhinus morio
    # Count: 21
    Date:
    Observer: Alison Evely
    Location: Arenal Observatory Lodge
  407. Brown-billed Scythebill Campylorhamphus pusillus
    # Count: 2
    Date:
    Observer: Johan Fernández
    Location: Arenal Observatory Lodge
  408. Green-crowned Brilliant Heliodoxa jacula
    # Count: 8
    Date:
    Observer: Herb Wilson
    Location: Arenal Observatory Lodge
  409. Dark Pewee Contopus lugubris
    # Count: 2
    Date:
    Observer: Andrew Mack
    Location: Arenal Observatory Lodge
  410. Sooty-faced Finch Arremon crassirostris
    # Count: 2
    Date:
    Observer: Andrew Mack
    Location: Arenal Observatory Lodge
  411. Solitary Sandpiper Tringa solitaria
    # Count: 2
    Date:
    Observer: Àlex Giménez
    Location: Arenal Observatory Lodge
  412. Plain Xenops Xenops minutus
    # Count: 6
    Date:
    Observer: Jessie Barry
    Location: Arenal Observatory Lodge
  413. Gray-crowned Yellowthroat Geothlypis poliocephala
    # Count: 6
    Date:
    Observer: Jessie Barry
    Location: Arenal Observatory Lodge
  414. Gray-rumped Swift Chaetura cinereiventris
    # Count: 50
    Date:
    Observer: Marcelo Corella
    Location: Arenal Observatory Lodge
  415. Brown-hooded Parrot Pyrilia haematotis
    # Count: 41
    Date:
    Observer: Marcelo Corella
    Location: Arenal Observatory Lodge
  416. White-crowned Parrot Pionus senilis
    # Count: 46
    Date:
    Observer: Marcelo Corella
    Location: Arenal Observatory Lodge
  417. Acadian Flycatcher Empidonax virescens
    # Count: 5
    Date:
    Observer: Sean Fitzgerald
    Location: Arenal Observatory Lodge
  418. Yellow-crowned Euphonia Euphonia luteicapilla
    # Count: 14
    Date:
    Observer: Sean Fitzgerald
    Location: Arenal Observatory Lodge
  419. Scaled Antpitta Grallaria guatimalensis
    # Count: 2
    Date:
    Observer: Jeanne Freitag
    Location: Arenal Observatory Lodge
  420. Turkey Vulture Cathartes aura
    # Count: 800
    Date:
    Observer: Diego Quesada
    Location: Arenal Observatory Lodge
  421. Gray Hawk Buteo plagiatus
    # Count: 6
    Date:
    Observer: Diego Quesada
    Location: Arenal Observatory Lodge
  422. Broad-winged Hawk Buteo platypterus
    # Count: 250
    Date:
    Observer: Diego Quesada
    Location: Arenal Observatory Lodge
  423. Swainson's Hawk Buteo swainsoni
    # Count: 20
    Date:
    Observer: Diego Quesada
    Location: Arenal Observatory Lodge
  424. Fasciated Antshrike Cymbilaimus lineatus
    # Count: 3
    Date:
    Observer: Jehudy Carballo
    Location: Arenal Observatory Lodge
  425. Cerulean Warbler Setophaga cerulea
    # Count: 6
    Date:
    Observer: Gabriel Rojas sorococas team
    Location: Arenal Observatory Lodge
  426. White-ruffed Manakin Corapipo altera
    # Count: 11
    Date:
    Observer: Ernest Carman
    Location: Arenal Observatory Lodge
  427. Cliff Swallow Petrochelidon pyrrhonota
    # Count: 175
    Date:
    Observer: Ernest Carman
    Location: Arenal Observatory Lodge
  428. Dickcissel Spiza americana
    # Count: 12
    Date:
    Observer: Ernest Carman
    Location: Arenal Observatory Lodge
  429. Great Antshrike Taraba major
    # Count: 3
    Date:
    Observer: Jorge Gabriel Campos
    Location: Arenal Observatory Lodge
  430. Black-crowned Antshrike Thamnophilus atrinucha
    # Count: 3
    Date:
    Observer: Jorge Gabriel Campos
    Location: Arenal Observatory Lodge
  431. Northern Jacana Jacana spinosa
    # Count: 4
    Date:
    Observer: Arenal Observatory Lodge Aves
    Location: Arenal Observatory Lodge
  432. Blue Dacnis Dacnis cayana
    # Count: 11
    Date:
    Observer: kenneth reyes
    Location: Arenal Observatory Lodge
  433. Golden-browed Chlorophonia Chlorophonia callophrys
    # Count: 6
    Date:
    Observer: renzo sturmo
    Location: Arenal Observatory Lodge
  434. Black-eared Wood-Quail Odontophorus melanotis
    # Count: 3
    Date:
    Observer: Diego Quesada
    Location: Arenal Observatory Lodge
  435. Plain-colored Tanager Tangara inornata
    # Count: 6
    Date:
    Observer: Diego Quesada
    Location: Arenal Observatory Lodge
  436. Slaty Spinetail Synallaxis brachyura
    # Count: 4
    Date:
    Observer: Anthony Arce
    Location: Arenal Observatory Lodge
  437. White-throated Thrush Turdus assimilis
    # Count: 12
    Date:
    Observer: Leandro Arias
    Location: Arenal Observatory Lodge
  438. Scale-crested Pygmy-Tyrant Lophotriccus pileatus
    # Count: 14
    Date:
    Observer: Benjamin Freeman
    Location: Arenal Observatory Lodge
  439. Blue-black Grassquit Volatinia jacarina
    # Count: 25
    Date:
    Observer: Benjamin Freeman
    Location: Arenal Observatory Lodge
  440. Black-striped Woodcreeper Xiphorhynchus lachrymosus
    # Count: 2
    Date:
    Observer: Ellie Armstrong
    Location: Arenal Observatory Lodge
  441. Bay-headed Tanager Tangara gyrola
    # Count: 32
    Date:
    Observer: Bob Barnes
    Location: Arenal Observatory Lodge
  442. Emerald Tanager Tangara florida
    # Count: 38
    Date:
    Observer: Bob Barnes
    Location: Arenal Observatory Lodge
  443. Pied Puffbird Notharchus tectus
    # Count: 2
    Date:
    Observer: Charlotte Byers
    Location: Arenal Observatory Lodge
  444. Yellow-throated Warbler Setophaga dominica
    # Count: 2
    Date:
    Observer: renzo sturmo
    Location: Arenal Observatory Lodge
  445. Long-billed Hermit Phaethornis longirostris
    # Count: 4
    Date:
    Observer: Johan Fernández
    Location: Arenal Observatory Lodge
  446. Blue-chested Hummingbird Polyerata amabilis
    # Count: 4
    Date:
    Observer: Johan Chaves
    Location: Arenal Observatory Lodge
  447. Ruby-throated Hummingbird Archilochus colubris
    # Count: 10
    Date:
    Observer: Diego Quesada
    Location: Arenal Observatory Lodge
  448. Indigo Bunting Passerina cyanea
    # Count: 3
    Date:
    Observer: Richard Garrigues
    Location: Arenal Observatory Lodge
  449. Yellow-winged Flatbill Tolmomyias flavotectus
    # Count: 2
    Date:
    Observer: Forrest Rowland
    Location: Arenal Observatory Lodge
  450. Snowcap Microchera albocoronata
    # Count: 4
    Date:
    Observer: Diego Quesada
    Location: Arenal Observatory Lodge
  451. Dusky Antbird Cercomacroides tyrannina
    # Count: 10
    Date:
    Observer: Diego Quesada
    Location: Arenal Observatory Lodge
  452. Black-throated Green Warbler Setophaga virens
    # Count: 5
    Date:
    Observer: Diego Quesada
    Location: Arenal Observatory Lodge
  453. Chestnut-headed Oropendola Psarocolius wagleri
    # Count: 100
    Date:
    Observer: Linda Eyster
    Location: Arenal Observatory Lodge
  454. American Coot Fulica americana
    # Count: 2
    Date:
    Observer: Martin Pitt
    Location: Arenal Observatory Lodge
  455. Rufous Piha Lipaugus unirufus
    # Count: 2
    Date:
    Observer: Arthur Steinberger
    Location: Arenal Observatory Lodge
  456. Lesser Scaup Aythya affinis
    # Count: 15
    Date:
    Observer: Ross Hall
    Location: Arenal Observatory Lodge
  457. Palm Tanager Thraupis palmarum
    # Count: 30
    Date:
    Observer: Anne Jacobs
    Location: Arenal Observatory Lodge
  458. Blue-and-white Swallow Pygochelidon cyanoleuca
    # Count: 50
    Date:
    Observer: Iain Robson
    Location: Arenal Observatory Lodge
  459. Hermit Warbler Setophaga occidentalis
    # Count: 2
    Date:
    Observer: Diego Quesada
    Location: Arenal Observatory Lodge
  460. Yellow-olive Flatbill Tolmomyias sulphurescens
    # Count: 5
    Date:
    Observer: Alex Mascarell Llosa
    Location: Arenal Observatory Lodge
  461. Prothonotary Warbler Protonotaria citrea
    # Count: 2
    Date:
    Observer: Alex Mascarell Llosa
    Location: Arenal Observatory Lodge
  462. Slaty-backed Nightingale-Thrush Catharus fuscater
    # Count: 3
    Date:
    Observer: adam zions
    Location: Arenal Observatory Lodge
  463. Black-necked Stilt Himantopus mexicanus
    # Count: 1
    Date:
    Observer: John Whittle
    Location: Arenal Observatory Lodge
  464. Groove-billed Ani Crotophaga sulcirostris
    # Count: 12
    Date:
    Observer: Kenneth Petersen
    Location: Arenal Observatory Lodge
  465. Rufous-winged Woodpecker Piculus simplex
    # Count: 4
    Date:
    Observer: Kenneth Petersen
    Location: Arenal Observatory Lodge
  466. Giant Cowbird Molothrus oryzivorus
    # Count: 6
    Date:
    Observer: Laura Gaudette
    Location: Arenal Observatory Lodge
  467. Rock Pigeon Columba livia
    # Count: 30
    Date:
    Observer: Bob Shettler
    Location: Arenal Observatory Lodge
  468. Plain-capped Starthroat Heliomaster constantii
    # Count: 1
    Date:
    Observer: Ann Haverstock
    Location: Arenal Observatory Lodge
  469. Roseate Spoonbill Platalea ajaja
    # Count: 1
    Date:
    Observer: Ann Haverstock
    Location: Arenal Observatory Lodge
  470. Gray-throated Leaftosser Sclerurus albigularis
    # Count: 1
    Date:
    Observer: Mike Walsh
    Location: Arenal Observatory Lodge
  471. Golden-crowned Spadebill Platyrinchus coronatus
    # Count: 2
    Date:
    Observer: Stephen Brauning
    Location: Arenal Observatory Lodge
  472. Rufous-collared Sparrow Zonotrichia capensis
    # Count: 8
    Date:
    Observer: Kenneth Petersen
    Location: Arenal Observatory Lodge
  473. Amazon Kingfisher Chloroceryle amazona
    # Count: 3
    Date:
    Observer: Akis Gaitanakis
    Location: Arenal Observatory Lodge
  474. Yellow-bellied Tyrannulet Ornithion semiflavum
    # Count: 4
    Date:
    Observer: Patty McLean
    Location: Arenal Observatory Lodge
  475. Slate-throated Redstart Myioborus miniatus
    # Count: 3
    Date:
    Observer: Patty McLean
    Location: Arenal Observatory Lodge
  476. Spot-fronted Swift Cypseloides cherriei
    # Count: 28
    Date:
    Observer: Patty McLean
    Location: Arenal Observatory Lodge
  477. Yellow Warbler Setophaga petechia
    # Count: 8
    Date:
    Observer: Patty McLean
    Location: Arenal Observatory Lodge
  478. Ruddy Pigeon Patagioenas subvinacea
    # Count: 3
    Date:
    Observer: Taylor McLean
    Location: Arenal Observatory Lodge
  479. Blue-gray Tanager Thraupis episcopus
    # Count: 50
    Date:
    Observer: Jacques Lachance
    Location: Arenal Observatory Lodge
  480. White-crested Coquette Lophornis adorabilis
    # Count: 1
    Date:
    Observer: Stephanie Parker
    Location: Arenal Observatory Lodge
  481. Eastern Meadowlark Sturnella magna
    # Count: 4
    Date:
    Observer: Nick Fensler
    Location: Arenal Observatory Lodge
  482. White-browed Gnatcatcher Polioptila bilineata
    # Count: 4
    Date:
    Observer: Jim Zook
    Location: Arenal Observatory Lodge
  483. White-chinned Swift Cypseloides cryptus
    # Count: 18
    Date:
    Observer: Herman Venegas
    Location: Arenal Observatory Lodge
  484. Long-billed Gnatwren Ramphocaenus melanurus
    # Count: 5
    Date:
    Observer: Herman Venegas
    Location: Arenal Observatory Lodge
  485. Three-wattled Bellbird Procnias tricarunculatus
    # Count: 5
    Date:
    Observer: Judd Patterson
    Location: Arenal Observatory Lodge
  486. White-throated Magpie-Jay Calocitta formosa
    # Count: 15
    Date:
    Observer: Pam Overmyer
    Location: Arenal Observatory Lodge
  487. Eastern Kingbird Tyrannus tyrannus
    # Count: 85
    Date:
    Observer: Charles Bell
    Location: Arenal Observatory Lodge
  488. White-winged Tanager Piranga leucoptera
    # Count: 2
    Date:
    Observer: Jim Zook
    Location: Arenal Observatory Lodge
  489. Resplendent Quetzal Pharomachrus mocinno
    # Count: X
    Date:
    Observer: Lily Mah-Sen
    Location: Arenal Observatory Lodge
  490. Silver-throated Tanager Tangara icterocephala
    # Count: 45
    Date:
    Observer: Christopher Murray
    Location: Arenal Observatory Lodge
  491. Golden-hooded Tanager Stilpnia larvata
    # Count: 25
    Date:
    Observer: Christopher Murray
    Location: Arenal Observatory Lodge
  492. Black-banded Woodcreeper Dendrocolaptes picumnus
    # Count: 1
    Date:
    Observer: Pete Read
    Location: Arenal Observatory Lodge
  493. Black Guan Chamaepetes unicolor
    # Count: 2
    Date:
    Observer: Michael Liskay
    Location: Arenal Observatory Lodge
  494. Costa Rican Warbler Basileuterus melanotis
    # Count: 5
    Date:
    Observer: César Sánchez
    Location: Arenal Observatory Lodge
  495. Scarlet-rumped Tanager Ramphocelus passerinii
    # Count: 40
    Date:
    Observer: Michael Greenwald
    Location: Arenal Observatory Lodge
  496. Tropical Kingbird Tyrannus melancholicus
    # Count: 30
    Date:
    Observer: Michael Greenwald
    Location: Arenal Observatory Lodge
  497. Violet Sabrewing Campylopterus hemileucurus
    # Count: 6
    Date:
    Observer: Richard Garrigues
    Location: Arenal Observatory Lodge
  498. Scarlet-thighed Dacnis Dacnis venusta
    # Count: 24
    Date:
    Observer: Richard Garrigues
    Location: Arenal Observatory Lodge
  499. Black Vulture Coragyps atratus
    # Count: 50
    Date:
    Observer: Ian Ellis
    Location: Arenal Observatory Lodge
  500. Red-capped Manakin Ceratopipra mentalis
    # Count: 2
    Date:
    Observer: Ian Ellis
    Location: Arenal Observatory Lodge
  501. Common Pauraque Nyctidromus albicollis
    # Count: 10
    Date:
    Observer: Niels Bomholt
    Location: Arenal Observatory Lodge
  502. Mangrove Swallow Tachycineta albilinea
    # Count: 12
    Date:
    Observer: Ian Ellis
    Location: Arenal Observatory Lodge
  503. Mourning Warbler Geothlypis philadelphia
    # Count: 6
    Date:
    Observer: Ian Ellis
    Location: Arenal Observatory Lodge
  504. Red-winged Blackbird Agelaius phoeniceus
    # Count: 300
    Date:
    Observer: Brian Cox
    Location: Arenal Observatory Lodge
  505. Crimson-collared Tanager Ramphocelus sanguinolentus
    # Count: 12
    Date:
    Observer: Shaun Robson
    Location: Arenal Observatory Lodge
  506. Double-toothed Kite Harpagus bidentatus
    # Count: 4
    Date:
    Observer: Michael Bowen
    Location: Arenal Observatory Lodge
  507. Vaux's Swift Chaetura vauxi
    # Count: 100
    Date:
    Observer: Troy Corman
    Location: Arenal Observatory Lodge
  508. Great Egret Ardea alba
    # Count: 100
    Date:
    Observer: Troy Corman
    Location: Arenal Observatory Lodge
  509. Swallow-tailed Kite Elanoides forficatus
    # Count: 100
    Date:
    Observer: Troy Corman
    Location: Arenal Observatory Lodge
  510. Wilson's Warbler Cardellina pusilla
    # Count: 6
    Date:
    Observer: Troy Corman
    Location: Arenal Observatory Lodge

Exotic: Escapee (1)

  1. Blue-and-yellow Macaw Ara ararauna
    # Count: 1
    Date:
    Observer: Lindsay Wood
    Location: Arenal Observatory Lodge

Hybrids (2)

  1. Lawrence's Warbler (hybrid) Vermivora chrysoptera x cyanoptera (F2 backcross)
    # Count: 1
    Date:
    Observer: Luke Berg
    Location: Arenal Observatory Lodge
  2. Brewster's Warbler (hybrid) Vermivora chrysoptera x cyanoptera (F1 hybrid)
    # Count: 1
    Date:
    Observer: Gerry Hawkins
    Location: Arenal Observatory Lodge

Additional Taxa (58)

  1. Chimney/Vaux's Swift Chaetura pelagica/vauxi
    # Count: 4
    Date:
    Observer: Shawn Pfautsch
    Location: Arenal Observatory Lodge
  2. Myiarchus sp. Myiarchus sp.
    # Count: 1
    Date:
    Observer: Néstor Villalobos Rojas
    Location: Arenal Observatory Lodge
  3. wood-wren sp. Henicorhina sp.
    # Count: 2
    Date:
    Observer: Marshall Iliff
    Location: Arenal Observatory Lodge
  4. saltator sp. Saltator sp.
    # Count: 2
    Date:
    Observer: Hunter Hickok
    Location: Arenal Observatory Lodge
  5. Buteo sp. Buteo sp.
    # Count: 1
    Date:
    Observer: Josh Seibel
    Location: Arenal Observatory Lodge
  6. new world trogon sp. Trogon sp.
    # Count: 2
    Date:
    Observer: Aaron Haycraft
    Location: Arenal Observatory Lodge
  7. hermit sp. Phaethornis sp.
    # Count: 3
    Date:
    Observer: Cameron Cox
    Location: Arenal Observatory Lodge
  8. swift sp. Apodidae sp.
    # Count: 50
    Date:
    Observer: Liz Kuo
    Location: Arenal Observatory Lodge
  9. Accipiter sp. Accipiter sp.
    # Count: 1
    Date:
    Observer: Alex Merritt
    Location: Arenal Observatory Lodge
  10. Rose-breasted/Black-headed Grosbeak Pheucticus ludovicianus/melanocephalus
    # Count: 1
    Date:
    Observer: Arenal Observatory Lodge Aves
    Location: Arenal Observatory Lodge
  11. pewee sp. (Contopus sp.) Contopus sp.
    # Count: 2
    Date:
    Observer: David Blevins
    Location: Arenal Observatory Lodge
  12. Blue-winged/Cinnamon Teal Spatula discors/cyanoptera
    # Count: 1
    Date:
    Observer: Noah Gibb
    Location: Arenal Observatory Lodge
  13. ground dove/Inca Dove Columbina sp.
    # Count: 1
    Date:
    Observer: Emerson Harman
    Location: Arenal Observatory Lodge
  14. parrot sp. Psittaciformes sp. (parrot sp.)
    # Count: 35
    Date:
    Observer: Emerson Harman
    Location: Arenal Observatory Lodge
  15. tropical pewee sp. Contopus punensis/cinereus/bogotensis
    # Count: 1
    Date:
    Observer: Traluxu VIP Travel Costa Rica
    Location: Arenal Observatory Lodge
  16. woodcreeper sp. Dendrocolaptinae sp.
    # Count: 3
    Date:
    Observer: Ben Stalheim
    Location: Arenal Observatory Lodge
  17. motmot sp. Momotidae sp.
    # Count: 6
    Date:
    Observer: Ernest Carman
    Location: Arenal Observatory Lodge
  18. tinamou sp. Tinamidae sp.
    # Count: 2
    Date:
    Observer: Arenal Observatory Lodge Aves
    Location: Arenal Observatory Lodge
  19. Catharus sp. Catharus sp.
    # Count: 2
    Date:
    Observer: tom aversa
    Location: Arenal Observatory Lodge
  20. Myiobius sp. Myiobius sp.
    # Count: 1
    Date:
    Observer: Robert Gundy
    Location: Arenal Observatory Lodge
  21. Cabanis's/Canebrake Wren Cantorchilus modestus/zeledoni
    # Count: 1
    Date:
    Observer: Chris Lima
    Location: Arenal Observatory Lodge
  22. Empidonax sp. Empidonax sp.
    # Count: 2
    Date:
    Observer: Laura Dykstra
    Location: Arenal Observatory Lodge
  23. teal sp. Anatidae sp. (teal sp.)
    # Count: 1
    Date:
    Observer: Dauren Hidalgo Torres
    Location: Arenal Observatory Lodge
  24. Bullock's/Baltimore Oriole Icterus bullockii/galbula
    # Count: 6
    Date:
    Observer: Kim Risen
    Location: Arenal Observatory Lodge
  25. large swift sp. Apodidae sp. (large swift sp.)
    # Count: 75
    Date:
    Observer: Dave Slager
    Location: Arenal Observatory Lodge
  26. falcon sp. Falco sp.
    # Count: 1
    Date:
    Observer: Steve and Janet Kistler
    Location: Arenal Observatory Lodge
  27. pigeon/dove sp. Columbidae sp.
    # Count: 26
    Date:
    Observer: Peder Svingen
    Location: Arenal Observatory Lodge
  28. Western/Eastern Wood-Pewee Contopus sordidulus/virens
    # Count: 4
    Date:
    Observer: Diego Quesada
    Location: Arenal Observatory Lodge
  29. swallow sp. Hirundinidae sp.
    # Count: 50
    Date:
    Observer: Néstor Villalobos Rojas
    Location: Arenal Observatory Lodge
  30. tityra sp. Tityra sp.
    # Count: 6
    Date:
    Observer: Néstor Villalobos Rojas
    Location: Arenal Observatory Lodge
  31. Turdus sp. Turdus sp.
    # Count: 8
    Date:
    Observer: Joe Tuvell
    Location: Arenal Observatory Lodge
  32. Northern/Southern Rough-winged Swallow Stelgidopteryx serripennis/ruficollis
    # Count: 2
    Date:
    Observer: Paul Heveran
    Location: Arenal Observatory Lodge
  33. parakeet sp. Psittaciformes sp. (parakeet sp.)
    # Count: 13
    Date:
    Observer: Rich Howard
    Location: Arenal Observatory Lodge
  34. owl sp. Strigiformes sp.
    # Count: 1
    Date:
    Observer: Mark Schulist
    Location: Arenal Observatory Lodge
  35. hawk sp. Accipitridae sp. (hawk sp.)
    # Count: 3
    Date:
    Observer: Lucas stephenson
    Location: Arenal Observatory Lodge
  36. Cathartes sp. Cathartes sp.
    # Count: 2
    Date:
    Observer: Roy Valverde
    Location: Arenal Observatory Lodge
  37. Chaetura sp. Chaetura sp.
    # Count: 30
    Date:
    Observer: Pam Rasmussen
    Location: Arenal Observatory Lodge
  38. Louisiana/Northern Waterthrush Parkesia motacilla/noveboracensis
    # Count: 2
    Date:
    Observer: Reynaldo Álvarez
    Location: Arenal Observatory Lodge
  39. hummingbird sp. Trochilidae sp.
    # Count: 20
    Date:
    Observer: Richard Merrigan
    Location: Arenal Observatory Lodge
  40. large parakeet sp. (former Aratinga sp.) Eupsittula/Aratinga/Thectocercus/Psittacara sp.
    # Count: 30
    Date:
    Observer: Mary Beth Stowe
    Location: Arenal Observatory Lodge
  41. Patagioenas sp. Patagioenas sp.
    # Count: 150
    Date:
    Observer: Néstor Villalobos Rojas
    Location: Arenal Observatory Lodge
  42. new world oriole sp. Icterus sp.
    # Count: 1
    Date:
    Observer: Lynette Spence
    Location: Arenal Observatory Lodge
  43. manakin sp. Pipridae sp.
    # Count: 3
    Date:
    Observer: Andy Jones
    Location: Arenal Observatory Lodge
  44. Synallaxis sp. Synallaxis sp.
    # Count: 1
    Date:
    Observer: Jamie Adams
    Location: Arenal Observatory Lodge
  45. woodpecker sp. Picidae sp.
    # Count: 4
    Date:
    Observer: Sean Fitzgerald
    Location: Arenal Observatory Lodge
  46. Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/traillii
    # Count: 2
    Date:
    Observer: Sean Fitzgerald
    Location: Arenal Observatory Lodge
  47. wren sp. Troglodytidae sp.
    # Count: 8
    Date:
    Observer: Sean Fitzgerald
    Location: Arenal Observatory Lodge
  48. euphonia sp. Euphonia sp.
    # Count: 8
    Date:
    Observer: Sean Fitzgerald
    Location: Arenal Observatory Lodge
  49. passerine sp. Passeriformes sp.
    # Count: 30
    Date:
    Observer: Sean Fitzgerald
    Location: Arenal Observatory Lodge
  50. Amazona sp. Amazona sp.
    # Count: 50
    Date:
    Observer: Sean Fitzgerald
    Location: Arenal Observatory Lodge
  51. new world flycatcher sp. Tyrannidae sp.
    # Count: 10
    Date:
    Observer: Sean Fitzgerald
    Location: Arenal Observatory Lodge
  52. new world warbler sp. Parulidae sp.
    # Count: 8
    Date:
    Observer: Sean Fitzgerald
    Location: Arenal Observatory Lodge
  53. elaenia sp. (genus Elaenia) Elaenia sp.
    # Count: 2
    Date:
    Observer: Missy Bowen
    Location: Arenal Observatory Lodge
  54. blackbird sp. Icteridae sp.
    # Count: 4
    Date:
    Observer: Missy Bowen
    Location: Arenal Observatory Lodge
  55. nighthawk sp. Chordeiles sp.
    # Count: 6
    Date:
    Observer: James Tiedeman
    Location: Arenal Observatory Lodge
  56. Keel-billed/Broad-billed Motmot Electron carinatum/platyrhynchum
    # Count: 1
    Date:
    Observer: Rich Hoyer
    Location: Arenal Observatory Lodge
  57. tanager sp. (Thraupidae sp.) Thraupidae sp. (tanager sp.)
    # Count: 15
    Date:
    Observer: Tom Johnson
    Location: Arenal Observatory Lodge
  58. large macaw sp. Ara sp.
    # Count: 1
    Date:
    Observer: Bob Ringler
    Location: Arenal Observatory Lodge