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Bird List

Updated ~32 seconds ago
214 All Years 96 This Year 2024 0 This Month May 2024
Last Observed First Observed High Count

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  1. Species Name
    Count
    Date
    Observer
    Location

Native and Naturalized (214)

  1. Purple Martin Progne subis
    # Count: 1
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  2. Barn Swallow Hirundo rustica
    # Count: 1
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  3. Canada Goose Branta canadensis
    # Count: 4
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  4. Wood Duck Aix sponsa
    # Count: 5
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  5. Mourning Dove Zenaida macroura
    # Count: 2
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  6. Chimney Swift Chaetura pelagica
    # Count: 17
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  7. Killdeer Charadrius vociferus
    # Count: 1
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  8. Green Heron Butorides virescens
    # Count: 1
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  9. Great Blue Heron Ardea herodias
    # Count: 1
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  10. Turkey Vulture Cathartes aura
    # Count: 1
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  11. Red-bellied Woodpecker Melanerpes carolinus
    # Count: 1
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  12. Downy Woodpecker Dryobates pubescens
    # Count: 1
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  13. Pileated Woodpecker Dryocopus pileatus
    # Count: 1
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  14. Eastern Wood-Pewee Contopus virens
    # Count: 1
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  15. Eastern Phoebe Sayornis phoebe
    # Count: 2
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  16. Great Crested Flycatcher Myiarchus crinitus
    # Count: 1
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  17. White-eyed Vireo Vireo griseus
    # Count: 2
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  18. Blue-headed Vireo Vireo solitarius
    # Count: 1
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  19. Red-eyed Vireo Vireo olivaceus
    # Count: 3
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  20. Carolina Chickadee Poecile carolinensis
    # Count: 2
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  21. Tufted Titmouse Baeolophus bicolor
    # Count: 8
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  22. Tree Swallow Tachycineta bicolor
    # Count: 26
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  23. White-breasted Nuthatch Sitta carolinensis
    # Count: 1
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  24. Blue-gray Gnatcatcher Polioptila caerulea
    # Count: 11
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  25. Carolina Wren Thryothorus ludovicianus
    # Count: 1
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  26. Eastern Bluebird Sialia sialis
    # Count: 4
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  27. Veery Catharus fuscescens
    # Count: 1
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  28. American Goldfinch Spinus tristis
    # Count: 9
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  29. White-throated Sparrow Zonotrichia albicollis
    # Count: 8
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  30. Red-winged Blackbird Agelaius phoeniceus
    # Count: 9
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  31. Brown-headed Cowbird Molothrus ater
    # Count: 3
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  32. Common Grackle Quiscalus quiscula
    # Count: 4
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  33. Louisiana Waterthrush Parkesia motacilla
    # Count: 1
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  34. Common Yellowthroat Geothlypis trichas
    # Count: 1
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  35. American Redstart Setophaga ruticilla
    # Count: 32
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  36. Northern Parula Setophaga americana
    # Count: 16
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  37. Northern Cardinal Cardinalis cardinalis
    # Count: 3
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  38. Baltimore Oriole Icterus galbula
    # Count: 1
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  39. Eastern Screech-Owl Megascops asio
    # Count: 1
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  40. Black Vulture Coragyps atratus
    # Count: 2
    Date:
    Observer: cara masullo
    Location: Patuxent Research Refuge
  41. Osprey Pandion haliaetus
    # Count: 1
    Date:
    Observer: cara masullo
    Location: Patuxent Research Refuge
  42. Belted Kingfisher Megaceryle alcyon
    # Count: 1
    Date:
    Observer: cara masullo
    Location: Patuxent Research Refuge
  43. Northern Rough-winged Swallow Stelgidopteryx serripennis
    # Count: 1
    Date:
    Observer: cara masullo
    Location: Patuxent Research Refuge
  44. American Robin Turdus migratorius
    # Count: 5
    Date:
    Observer: cara masullo
    Location: Patuxent Research Refuge
  45. Chipping Sparrow Spizella passerina
    # Count: 6
    Date:
    Observer: cara masullo
    Location: Patuxent Research Refuge
  46. Swamp Sparrow Melospiza georgiana
    # Count: 2
    Date:
    Observer: cara masullo
    Location: Patuxent Research Refuge
  47. Ovenbird Seiurus aurocapilla
    # Count: 1
    Date:
    Observer: cara masullo
    Location: Patuxent Research Refuge
  48. Yellow-rumped Warbler Setophaga coronata
    # Count: 1
    Date:
    Observer: cara masullo
    Location: Patuxent Research Refuge
  49. Mallard Anas platyrhynchos
    # Count: 1
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  50. Pied-billed Grebe Podilymbus podiceps
    # Count: 1
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  51. Gray Catbird Dumetella carolinensis
    # Count: 1
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  52. Prothonotary Warbler Protonotaria citrea
    # Count: 2
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  53. Bald Eagle Haliaeetus leucocephalus
    # Count: 1
    Date:
    Observer: Vincent Bryant
    Location: Patuxent Research Refuge
  54. Red-shouldered Hawk Buteo lineatus
    # Count: 1
    Date:
    Observer: Vincent Bryant
    Location: Patuxent Research Refuge
  55. Hairy Woodpecker Dryobates villosus
    # Count: 1
    Date:
    Observer: Vincent Bryant
    Location: Patuxent Research Refuge
  56. Northern Flicker Colaptes auratus
    # Count: 2
    Date:
    Observer: Vincent Bryant
    Location: Patuxent Research Refuge
  57. Blue Jay Cyanocitta cristata
    # Count: 10
    Date:
    Observer: Vincent Bryant
    Location: Patuxent Research Refuge
  58. Common Raven Corvus corax
    # Count: 1
    Date:
    Observer: Vincent Bryant
    Location: Patuxent Research Refuge
  59. Ruby-crowned Kinglet Corthylio calendula
    # Count: 4
    Date:
    Observer: Vincent Bryant
    Location: Patuxent Research Refuge
  60. European Starling Sturnus vulgaris
    # Count: 5
    Date:
    Observer: Vincent Bryant
    Location: Patuxent Research Refuge
  61. Brown Thrasher Toxostoma rufum
    # Count: 3
    Date:
    Observer: Vincent Bryant
    Location: Patuxent Research Refuge
  62. Northern Mockingbird Mimus polyglottos
    # Count: 5
    Date:
    Observer: Vincent Bryant
    Location: Patuxent Research Refuge
  63. Hermit Thrush Catharus guttatus
    # Count: 2
    Date:
    Observer: Vincent Bryant
    Location: Patuxent Research Refuge
  64. Wood Thrush Hylocichla mustelina
    # Count: 2
    Date:
    Observer: Vincent Bryant
    Location: Patuxent Research Refuge
  65. Field Sparrow Spizella pusilla
    # Count: 2
    Date:
    Observer: Vincent Bryant
    Location: Patuxent Research Refuge
  66. Song Sparrow Melospiza melodia
    # Count: 1
    Date:
    Observer: Vincent Bryant
    Location: Patuxent Research Refuge
  67. Eastern Towhee Pipilo erythrophthalmus
    # Count: 2
    Date:
    Observer: Vincent Bryant
    Location: Patuxent Research Refuge
  68. Worm-eating Warbler Helmitheros vermivorum
    # Count: 1
    Date:
    Observer: Vincent Bryant
    Location: Patuxent Research Refuge
  69. Palm Warbler Setophaga palmarum
    # Count: 2
    Date:
    Observer: Vincent Bryant
    Location: Patuxent Research Refuge
  70. Pine Warbler Setophaga pinus
    # Count: 2
    Date:
    Observer: Vincent Bryant
    Location: Patuxent Research Refuge
  71. Yellow-throated Warbler Setophaga dominica
    # Count: 1
    Date:
    Observer: Vincent Bryant
    Location: Patuxent Research Refuge
  72. Yellow-bellied Sapsucker Sphyrapicus varius
    # Count: 1
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  73. Yellow-throated Vireo Vireo flavifrons
    # Count: 2
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  74. Fish Crow Corvus ossifragus
    # Count: 2
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  75. Red-tailed Hawk Buteo jamaicensis
    # Count: 1
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  76. Warbling Vireo Vireo gilvus
    # Count: 1
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  77. House Finch Haemorhous mexicanus
    # Count: 13
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  78. Black-and-white Warbler Mniotilta varia
    # Count: 2
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  79. House Sparrow Passer domesticus
    # Count: 4
    Date:
    Observer: Sam Denenberg
    Location: Patuxent Research Refuge
  80. Ring-necked Duck Aythya collaris
    # Count: 38
    Date:
    Observer: cara masullo
    Location: Patuxent Research Refuge
  81. American Coot Fulica americana
    # Count: 1
    Date:
    Observer: cara masullo
    Location: Patuxent Research Refuge
  82. Green-winged Teal Anas crecca
    # Count: 1
    Date:
    Observer: cara masullo
    Location: Patuxent Research Refuge
  83. Hooded Merganser Lophodytes cucullatus
    # Count: 1
    Date:
    Observer: cara masullo
    Location: Patuxent Research Refuge
  84. American Woodcock Scolopax minor
    # Count: 1
    Date:
    Observer: cara masullo
    Location: Patuxent Research Refuge
  85. Wilson's Snipe Gallinago delicata
    # Count: 1
    Date:
    Observer: cara masullo
    Location: Patuxent Research Refuge
  86. Dark-eyed Junco Junco hyemalis
    # Count: 10
    Date:
    Observer: cara masullo
    Location: Patuxent Research Refuge
  87. American Black Duck Anas rubripes
    # Count: 2
    Date:
    Observer: Elle McGee
    Location: Patuxent Research Refuge
  88. Wild Turkey Meleagris gallopavo
    # Count: 1
    Date:
    Observer: Elle McGee
    Location: Patuxent Research Refuge
  89. American Crow Corvus brachyrhynchos
    # Count: 3
    Date:
    Observer: Elle McGee
    Location: Patuxent Research Refuge
  90. Golden-crowned Kinglet Regulus satrapa
    # Count: 2
    Date:
    Observer: Elle McGee
    Location: Patuxent Research Refuge
  91. Winter Wren Troglodytes hiemalis
    # Count: 2
    Date:
    Observer: Elle McGee
    Location: Patuxent Research Refuge
  92. Pine Siskin Spinus pinus
    # Count: 2
    Date:
    Observer: Elle McGee
    Location: Patuxent Research Refuge
  93. Fox Sparrow Passerella iliaca
    # Count: 1
    Date:
    Observer: Elle McGee
    Location: Patuxent Research Refuge
  94. Savannah Sparrow Passerculus sandwichensis
    # Count: 2
    Date:
    Observer: Elle McGee
    Location: Patuxent Research Refuge
  95. Eastern Meadowlark Sturnella magna
    # Count: 2
    Date:
    Observer: Elle McGee
    Location: Patuxent Research Refuge
  96. Rusty Blackbird Euphagus carolinus
    # Count: 6
    Date:
    Observer: Elle McGee
    Location: Patuxent Research Refuge
  97. Northern Pintail Anas acuta
    # Count: 5
    Date:
    Observer: Vincent Bryant
    Location: Patuxent Research Refuge
  98. Snow Goose Anser caerulescens
    # Count: 2
    Date:
    Observer: Sue and Alan Young
    Location: Patuxent Research Refuge
  99. Tundra Swan Cygnus columbianus
    # Count: 4
    Date:
    Observer: Sue and Alan Young
    Location: Patuxent Research Refuge
  100. Cooper's Hawk Accipiter cooperii
    # Count: 1
    Date:
    Observer: Sue and Alan Young
    Location: Patuxent Research Refuge
  101. Brown Creeper Certhia americana
    # Count: 1
    Date:
    Observer: Sue and Alan Young
    Location: Patuxent Research Refuge
  102. Cedar Waxwing Bombycilla cedrorum
    # Count: 12
    Date:
    Observer: Sue and Alan Young
    Location: Patuxent Research Refuge
  103. Yellow-billed Cuckoo Coccyzus americanus
    # Count: 1
    Date:
    Observer: Kiersten Newtoff
    Location: Patuxent Research Refuge
  104. Northern Waterthrush Parkesia noveboracensis
    # Count: 3
    Date:
    Observer: Kiersten Newtoff
    Location: Patuxent Research Refuge
  105. Chestnut-sided Warbler Setophaga pensylvanica
    # Count: 1
    Date:
    Observer: Kiersten Newtoff
    Location: Patuxent Research Refuge
  106. Black-throated Blue Warbler Setophaga caerulescens
    # Count: 1
    Date:
    Observer: Kiersten Newtoff
    Location: Patuxent Research Refuge
  107. Black-throated Green Warbler Setophaga virens
    # Count: 1
    Date:
    Observer: Kiersten Newtoff
    Location: Patuxent Research Refuge
  108. Wilson's Warbler Cardellina pusilla
    # Count: 1
    Date:
    Observer: Kiersten Newtoff
    Location: Patuxent Research Refuge
  109. Ruby-throated Hummingbird Archilochus colubris
    # Count: 2
    Date:
    Observer: Kiersten Newtoff
    Location: Patuxent Research Refuge
  110. Yellow Warbler Setophaga petechia
    # Count: 1
    Date:
    Observer: Kiersten Newtoff
    Location: Patuxent Research Refuge
  111. Canada Warbler Cardellina canadensis
    # Count: 2
    Date:
    Observer: Kiersten Newtoff
    Location: Patuxent Research Refuge
  112. Eastern Kingbird Tyrannus tyrannus
    # Count: 2
    Date:
    Observer: Fernando Arce
    Location: Patuxent Research Refuge
  113. Summer Tanager Piranga rubra
    # Count: 1
    Date:
    Observer: Fernando Arce
    Location: Patuxent Research Refuge
  114. Blue Grosbeak Passerina caerulea
    # Count: 2
    Date:
    Observer: Fernando Arce
    Location: Patuxent Research Refuge
  115. Acadian Flycatcher Empidonax virescens
    # Count: 1
    Date:
    Observer: Fernando Arce
    Location: Patuxent Research Refuge
  116. Blue-winged Warbler Vermivora cyanoptera
    # Count: 1
    Date:
    Observer: Fernando Arce
    Location: Patuxent Research Refuge
  117. Indigo Bunting Passerina cyanea
    # Count: 1
    Date:
    Observer: Brian Healy
    Location: Patuxent Research Refuge
  118. Orchard Oriole Icterus spurius
    # Count: 1
    Date:
    Observer: Dan Niven
    Location: Patuxent Research Refuge
  119. Hooded Warbler Setophaga citrina
    # Count: 3
    Date:
    Observer: Dan Niven
    Location: Patuxent Research Refuge
  120. Scarlet Tanager Piranga olivacea
    # Count: 4
    Date:
    Observer: Dan Niven
    Location: Patuxent Research Refuge
  121. Swainson's Thrush Catharus ustulatus
    # Count: 1
    Date:
    Observer: Tom B
    Location: Patuxent Research Refuge
  122. Prairie Warbler Setophaga discolor
    # Count: 1
    Date:
    Observer: Bobby Jones
    Location: Patuxent Research Refuge
  123. Blue-winged Teal Spatula discors
    # Count: 4
    Date:
    Observer: Zachary Wood
    Location: Patuxent Research Refuge
  124. Virginia Rail Rallus limicola
    # Count: 1
    Date:
    Observer: Zachary Wood
    Location: Patuxent Research Refuge
  125. Spotted Sandpiper Actitis macularius
    # Count: 2
    Date:
    Observer: Zachary Wood
    Location: Patuxent Research Refuge
  126. Lesser Yellowlegs Tringa flavipes
    # Count: 5
    Date:
    Observer: Zachary Wood
    Location: Patuxent Research Refuge
  127. Greater Yellowlegs Tringa melanoleuca
    # Count: 5
    Date:
    Observer: Zachary Wood
    Location: Patuxent Research Refuge
  128. Laughing Gull Leucophaeus atricilla
    # Count: 20
    Date:
    Observer: Zachary Wood
    Location: Patuxent Research Refuge
  129. Ring-billed Gull Larus delawarensis
    # Count: 1
    Date:
    Observer: Zachary Wood
    Location: Patuxent Research Refuge
  130. Double-crested Cormorant Nannopterum auritum
    # Count: 6
    Date:
    Observer: Zachary Wood
    Location: Patuxent Research Refuge
  131. Least Bittern Ixobrychus exilis
    # Count: 1
    Date:
    Observer: Zachary Wood
    Location: Patuxent Research Refuge
  132. Snowy Egret Egretta thula
    # Count: 1
    Date:
    Observer: Zachary Wood
    Location: Patuxent Research Refuge
  133. Great Egret Ardea alba
    # Count: 1
    Date:
    Observer: Zachary Wood
    Location: Patuxent Research Refuge
  134. Glossy Ibis Plegadis falcinellus
    # Count: 4
    Date:
    Observer: Zachary Wood
    Location: Patuxent Research Refuge
  135. Northern Harrier Circus hudsonius
    # Count: 1
    Date:
    Observer: Zachary Wood
    Location: Patuxent Research Refuge
  136. Barred Owl Strix varia
    # Count: 2
    Date:
    Observer: Zachary Wood
    Location: Patuxent Research Refuge
  137. Marsh Wren Cistothorus palustris
    # Count: 2
    Date:
    Observer: Zachary Wood
    Location: Patuxent Research Refuge
  138. Rose-breasted Grosbeak Pheucticus ludovicianus
    # Count: 1
    Date:
    Observer: Fernando Arce
    Location: Patuxent Research Refuge
  139. Solitary Sandpiper Tringa solitaria
    # Count: 4
    Date:
    Observer: Fernando Arce
    Location: Patuxent Research Refuge
  140. Little Blue Heron Egretta caerulea
    # Count: 1
    Date:
    Observer: Fernando Arce
    Location: Patuxent Research Refuge
  141. Common Gallinule Gallinula galeata
    # Count: 1
    Date:
    Observer: Fernando Arce
    Location: Patuxent Research Refuge
  142. Vesper Sparrow Pooecetes gramineus
    # Count: 1
    Date:
    Observer: Fernando Arce
    Location: Patuxent Research Refuge
  143. House Wren Troglodytes aedon
    # Count: 1
    Date:
    Observer: Fernando Arce
    Location: Patuxent Research Refuge
  144. Sharp-shinned Hawk Accipiter striatus
    # Count: 1
    Date:
    Observer: Fernando Arce
    Location: Patuxent Research Refuge
  145. American Wigeon Mareca americana
    # Count: 2
    Date:
    Observer: Fernando Arce
    Location: Patuxent Research Refuge
  146. American Tree Sparrow Spizelloides arborea
    # Count: 1
    Date:
    Observer: Hillary White
    Location: Patuxent Research Refuge
  147. Rock Pigeon Columba livia
    # Count: 5
    Date:
    Observer: BRIAN MOYER
    Location: Patuxent Research Refuge
  148. Red-breasted Nuthatch Sitta canadensis
    # Count: 2
    Date:
    Observer: BRIAN MOYER
    Location: Patuxent Research Refuge
  149. Bufflehead Bucephala albeola
    # Count: 1
    Date:
    Observer: Fernando Arce
    Location: Patuxent Research Refuge
  150. Herring Gull Larus argentatus
    # Count: 1
    Date:
    Observer: Fernando Arce
    Location: Patuxent Research Refuge
  151. Red-headed Woodpecker Melanerpes erythrocephalus
    # Count: 1
    Date:
    Observer: Fernando Arce
    Location: Patuxent Research Refuge
  152. American Pipit Anthus rubescens
    # Count: 3
    Date:
    Observer: Fernando Arce
    Location: Patuxent Research Refuge
  153. Great Black-backed Gull Larus marinus
    # Count: 2
    Date:
    Observer: Fernando Arce
    Location: Patuxent Research Refuge
  154. Trumpeter Swan Cygnus buccinator
    # Count: 2
    Date:
    Observer: Fernando Arce
    Location: Patuxent Research Refuge
  155. Lesser Scaup Aythya affinis
    # Count: 2
    Date:
    Observer: Fernando Arce
    Location: Patuxent Research Refuge
  156. Ruddy Duck Oxyura jamaicensis
    # Count: 4
    Date:
    Observer: Fernando Arce
    Location: Patuxent Research Refuge
  157. Great Horned Owl Bubo virginianus
    # Count: 1
    Date:
    Observer: Fernando Arce
    Location: Patuxent Research Refuge
  158. Redhead Aythya americana
    # Count: 3
    Date:
    Observer: Fernando Arce
    Location: Patuxent Research Refuge
  159. Broad-winged Hawk Buteo platypterus
    # Count: 102
    Date:
    Observer: George Carney
    Location: Patuxent Research Refuge
  160. Merlin Falco columbarius
    # Count: 1
    Date:
    Observer: Eric Sprague
    Location: Patuxent Research Refuge
  161. Magnolia Warbler Setophaga magnolia
    # Count: 1
    Date:
    Observer: Fernando Arce
    Location: Patuxent Research Refuge
  162. Bank Swallow Riparia riparia
    # Count: 7
    Date:
    Observer: Margo Glover
    Location: Patuxent Research Refuge
  163. Kentucky Warbler Geothlypis formosa
    # Count: 1
    Date:
    Observer: William Heinle
    Location: Patuxent Research Refuge
  164. American Kestrel Falco sparverius
    # Count: 1
    Date:
    Observer: Fernando Arce
    Location: Patuxent Research Refuge
  165. Yellow-breasted Chat Icteria virens
    # Count: 1
    Date:
    Observer: Fernando Arce
    Location: Patuxent Research Refuge
  166. Peregrine Falcon Falco peregrinus
    # Count: 1
    Date:
    Observer: Fernando Arce
    Location: Patuxent Research Refuge
  167. Bobolink Dolichonyx oryzivorus
    # Count: 15
    Date:
    Observer: Henry Stevens
    Location: Patuxent Research Refuge
  168. Nashville Warbler Leiothlypis ruficapilla
    # Count: 1
    Date:
    Observer: Henry Stevens
    Location: Patuxent Research Refuge
  169. Bay-breasted Warbler Setophaga castanea
    # Count: 1
    Date:
    Observer: Henry Stevens
    Location: Patuxent Research Refuge
  170. Cape May Warbler Setophaga tigrina
    # Count: 1
    Date:
    Observer: Jacob Miranda
    Location: Patuxent Research Refuge
  171. Gray-cheeked Thrush Catharus minimus
    # Count: 1
    Date:
    Observer: Jacob Miranda
    Location: Patuxent Research Refuge
  172. Blackburnian Warbler Setophaga fusca
    # Count: 1
    Date:
    Observer: Jacob Miranda
    Location: Patuxent Research Refuge
  173. Blackpoll Warbler Setophaga striata
    # Count: 2
    Date:
    Observer: Henry Stevens
    Location: Patuxent Research Refuge
  174. Tennessee Warbler Leiothlypis peregrina
    # Count: 1
    Date:
    Observer: Abby Walter
    Location: Patuxent Research Refuge
  175. Least Sandpiper Calidris minutilla
    # Count: 2
    Date:
    Observer: Insa Kummer
    Location: Patuxent Research Refuge
  176. Purple Finch Haemorhous purpureus
    # Count: 1
    Date:
    Observer: Meggie Stewart
    Location: Patuxent Research Refuge
  177. Lincoln's Sparrow Melospiza lincolnii
    # Count: 1
    Date:
    Observer: Melissa Roach
    Location: Patuxent Research Refuge
  178. Common Nighthawk Chordeiles minor
    # Count: X
    Date:
    Observer: Larry & Patty Marsh
    Location: Patuxent Research Refuge
  179. Canvasback Aythya valisineria
    # Count: 1
    Date:
    Observer: Igor Sokolov
    Location: Patuxent Research Refuge
  180. Orange-crowned Warbler Leiothlypis celata
    # Count: 1
    Date:
    Observer: Christopher Gilbert
    Location: Patuxent Research Refuge
  181. White-crowned Sparrow Zonotrichia leucophrys
    # Count: 4
    Date:
    Observer: Bonnie Ott
    Location: Patuxent Research Refuge
  182. Connecticut Warbler Oporornis agilis
    # Count: 1
    Date:
    Observer: Christopher Gilbert
    Location: Patuxent Research Refuge
  183. Common Merganser Mergus merganser
    # Count: 1
    Date:
    Observer: Subhashini Sivasubramanian
    Location: Patuxent Research Refuge
  184. Black Scoter Melanitta americana
    # Count: 1
    Date:
    Observer: Nathan Tea
    Location: Patuxent Research Refuge
  185. Western Cattle Egret Bubulcus ibis
    # Count: 3
    Date:
    Observer: Eric Sprague
    Location: Patuxent Research Refuge
  186. Gadwall Mareca strepera
    # Count: 2
    Date:
    Observer: Chris Bowden
    Location: Patuxent Research Refuge
  187. Semipalmated Plover Charadrius semipalmatus
    # Count: 2
    Date:
    Observer: Wendy Ward
    Location: Patuxent Research Refuge
  188. Least Flycatcher Empidonax minimus
    # Count: 1
    Date:
    Observer: Rod Burley
    Location: Patuxent Research Refuge
  189. American Bittern Botaurus lentiginosus
    # Count: 1
    Date:
    Observer: Noah Kahn
    Location: Patuxent Research Refuge
  190. Mourning Warbler Geothlypis philadelphia
    # Count: 1
    Date:
    Observer: James Nobles
    Location: Patuxent Research Refuge
  191. Willow Flycatcher Empidonax traillii
    # Count: 1
    Date:
    Observer: Noah Kahn
    Location: Patuxent Research Refuge
  192. Golden-winged Warbler Vermivora chrysoptera
    # Count: 1
    Date:
    Observer: Paul Marban
    Location: Patuxent Research Refuge
  193. Caspian Tern Hydroprogne caspia
    # Count: 4
    Date:
    Observer: Winston Barham
    Location: Patuxent Research Refuge
  194. Eastern Whip-poor-will Antrostomus vociferus
    # Count: 4
    Date:
    Observer: Rod Burley
    Location: Patuxent Research Refuge
  195. Rough-legged Hawk Buteo lagopus
    # Count: 1
    Date:
    Observer: Rod Burley
    Location: Patuxent Research Refuge
  196. Grasshopper Sparrow Ammodramus savannarum
    # Count: 1
    Date:
    Observer: Rod Burley
    Location: Patuxent Research Refuge
  197. Red-breasted Merganser Mergus serrator
    # Count: 2
    Date:
    Observer: Clark Rushing
    Location: Patuxent Research Refuge
  198. Red Crossbill Loxia curvirostra
    # Count: X
    Date:
    Observer: Rod Burley
    Location: Patuxent Research Refuge
  199. Greater Scaup Aythya marila
    # Count: 2
    Date:
    Observer: Rod Burley
    Location: Patuxent Research Refuge
  200. White-winged Crossbill Loxia leucoptera
    # Count: 6
    Date:
    Observer: Rod Burley
    Location: Patuxent Research Refuge
  201. Black-capped Chickadee Poecile atricapillus
    # Count: 1
    Date:
    Observer: Peter Osenton
    Location: Patuxent Research Refuge
  202. Philadelphia Vireo Vireo philadelphicus
    # Count: 1
    Date:
    Observer: Rod Burley
    Location: Patuxent Research Refuge
  203. Forster's Tern Sterna forsteri
    # Count: 1
    Date:
    Observer: Christopher Murray
    Location: Patuxent Research Refuge
  204. Cerulean Warbler Setophaga cerulea
    # Count: 1
    Date:
    Observer: Rod Burley
    Location: Patuxent Research Refuge
  205. Sandhill Crane Antigone canadensis
    # Count: 1
    Date:
    Observer: Mark Chandler
    Location: Patuxent Research Refuge
  206. Northern Bobwhite Colinus virginianus
    # Count: X
    Date:
    Observer: Joseph DiCostanzo
    Location: Patuxent Research Refuge
  207. Bonaparte's Gull Chroicocephalus philadelphia
    # Count: 126
    Date:
    Observer: Don Burggraf
    Location: Patuxent Research Refuge
  208. Black-billed Cuckoo Coccyzus erythropthalmus
    # Count: 1
    Date:
    Observer: Rod Burley
    Location: Patuxent Research Refuge
  209. Common Loon Gavia immer
    # Count: X
    Date:
    Observer: Daniel Froehlich
    Location: Patuxent Research Refuge
  210. Cliff Swallow Petrochelidon pyrrhonota
    # Count: X
    Date:
    Observer: Daniel Froehlich
    Location: Patuxent Research Refuge
  211. Mississippi Kite Ictinia mississippiensis
    # Count: 1
    Date:
    Observer: Michael O'Brien
    Location: Patuxent Research Refuge
  212. Evening Grosbeak Coccothraustes vespertinus
    # Count: X
    Date:
    Observer: Steve Holzman
    Location: Patuxent Research Refuge
  213. Mute Swan Cygnus olor
    # Count: 2
    Date:
    Observer: robert laker
    Location: Patuxent Research Refuge
  214. King Rail Rallus elegans
    # Count: 1
    Date:
    Observer: Brooke Meanley Data
    Location: Patuxent Research Refuge

Hybrids (1)

  1. Mallard x American Black Duck (hybrid) Anas platyrhynchos x rubripes
    # Count: 1
    Date:
    Observer: Rod Burley
    Location: Patuxent Research Refuge

Additional Taxa (23)

  1. Buteo sp. Buteo sp.
    # Count: 1
    Date:
    Observer: Robert & Mary Betz
    Location: Patuxent Research Refuge
  2. Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/traillii
    # Count: 2
    Date:
    Observer: Kiersten Newtoff
    Location: Patuxent Research Refuge
  3. passerine sp. Passeriformes sp.
    # Count: 1
    Date:
    Observer: Rachel Barham
    Location: Patuxent Research Refuge
  4. American/Fish Crow Corvus brachyrhynchos/ossifragus
    # Count: 5
    Date:
    Observer: Fernando Arce
    Location: Patuxent Research Refuge
  5. hawk sp. Accipitridae sp. (hawk sp.)
    # Count: 1
    Date:
    Observer: Fernando Arce
    Location: Patuxent Research Refuge
  6. duck sp. Anatidae (duck sp.)
    # Count: X
    Date:
    Observer: Jeremy Gardner
    Location: Patuxent Research Refuge
  7. Downy/Hairy Woodpecker Dryobates pubescens/villosus
    # Count: 1
    Date:
    Observer: Danylo Hawks
    Location: Patuxent Research Refuge
  8. new world flycatcher sp. Tyrannidae sp.
    # Count: 1
    Date:
    Observer: Insa Kummer
    Location: Patuxent Research Refuge
  9. new world warbler sp. Parulidae sp.
    # Count: 1
    Date:
    Observer: Jacob Miranda
    Location: Patuxent Research Refuge
  10. crow sp. Corvus sp. (crow sp.)
    # Count: 5
    Date:
    Observer: Rachel Barham
    Location: Patuxent Research Refuge
  11. woodpecker sp. Picidae sp.
    # Count: X
    Date:
    Observer: Emily Bjerre
    Location: Patuxent Research Refuge
  12. Lesser/Greater Yellowlegs Tringa flavipes/melanoleuca
    # Count: 1
    Date:
    Observer: Jenny Hawes
    Location: Patuxent Research Refuge
  13. vireo sp. Vireo sp.
    # Count: 1
    Date:
    Observer: Rachel Barham
    Location: Patuxent Research Refuge
  14. Empidonax sp. Empidonax sp.
    # Count: 1
    Date:
    Observer: Michelle Horowitz
    Location: Patuxent Research Refuge
  15. tern sp. Sterninae sp.
    # Count: 1
    Date:
    Observer: Amanda Walker
    Location: Patuxent Research Refuge
  16. Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperii
    # Count: 1
    Date:
    Observer: Mary McElvene
    Location: Patuxent Research Refuge
  17. new world sparrow sp. Passerellidae sp.
    # Count: 2
    Date:
    Observer: Dean Mahlstedt
    Location: Patuxent Research Refuge
  18. blackbird sp. Icteridae sp.
    # Count: 1
    Date:
    Observer: Rachel Barham
    Location: Patuxent Research Refuge
  19. swallow sp. Hirundinidae sp.
    # Count: 4
    Date:
    Observer: Tim Boucher
    Location: Patuxent Research Refuge
  20. peep sp. Calidris sp. (peep sp.)
    # Count: 2
    Date:
    Observer: Winston Barham
    Location: Patuxent Research Refuge
  21. Accipiter sp. Accipiter sp.
    # Count: 1
    Date:
    Observer: Winston Barham
    Location: Patuxent Research Refuge
  22. goose sp. Anatidae (goose sp.)
    # Count: 1
    Date:
    Observer: Rachel Barham
    Location: Patuxent Research Refuge
  23. Catharus sp. Catharus sp.
    # Count: 1
    Date:
    Observer: Rod Burley
    Location: Patuxent Research Refuge