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Walden Ponds Wildlife Habitat--Sawhill Ponds only

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Bird List

Updated ~12 seconds ago
242 All Years 79 This Year 2024 49 This Month Jun 2024
Last Observed First Observed High Count

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  1. Species Name
    Count
    Date
    Observer
    Location

Native and Naturalized (241)

  1. Baird's Sandpiper Calidris bairdii
    # Count: 1
    Date:
    Observer: Bruce Bosley
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  2. Bohemian Waxwing Bombycilla garrulus
    # Count: 1
    Date:
    Observer: Bruce Bosley
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  3. Carolina Wren Thryothorus ludovicianus
    # Count: 1
    Date:
    Observer: Narca Moore
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  4. Wood Thrush Hylocichla mustelina
    # Count: 1
    Date:
    Observer: Bruce Bosley
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  5. Blackburnian Warbler Setophaga fusca
    # Count: 1
    Date:
    Observer: Colorado Bird Records Committee
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  6. Common Gallinule Gallinula galeata
    # Count: 1
    Date:
    Observer: Colorado Bird Records Committee
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  7. Hooded Warbler Setophaga citrina
    # Count: 1
    Date:
    Observer: Laurens Halsey
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  8. Black-throated Gray Warbler Setophaga nigrescens
    # Count: 1
    Date:
    Observer: Laurens Halsey
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  9. Chimney Swift Chaetura pelagica
    # Count: 1
    Date:
    Observer: Laurens Halsey
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  10. Eastern Wood-Pewee Contopus virens
    # Count: 1
    Date:
    Observer: John Vanderpoel
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  11. Yellow-crowned Night Heron Nyctanassa violacea
    # Count: 1
    Date:
    Observer: Colorado Bird Records Committee
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  12. Horned Lark Eremophila alpestris
    # Count: X
    Date:
    Observer: Cyndy Johnson
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  13. Western Sandpiper Calidris mauri
    # Count: 1
    Date:
    Observer: Todd Deininger
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  14. Least Sandpiper Calidris minutilla
    # Count: 1
    Date:
    Observer: Tom Wilberding
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  15. Ash-throated Flycatcher Myiarchus cinerascens
    # Count: 1
    Date:
    Observer: Alexander Brown
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  16. Red Phalarope Phalaropus fulicarius
    # Count: 1
    Date:
    Observer: Tom Wilberding
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  17. Horned Grebe Podiceps auritus
    # Count: 300
    Date:
    Observer: Charles Thornton-Kolbe
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  18. Common Loon Gavia immer
    # Count: 8
    Date:
    Observer: Charles Thornton-Kolbe
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  19. Red-necked Phalarope Phalaropus lobatus
    # Count: X
    Date:
    Observer: Robert Martinez
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  20. Caspian Tern Hydroprogne caspia
    # Count: X
    Date:
    Observer: Robert Martinez
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  21. Forster's Tern Sterna forsteri
    # Count: X
    Date:
    Observer: Robert Martinez
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  22. Western Cattle Egret Bubulcus ibis
    # Count: 1
    Date:
    Observer: David Waltman
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  23. Least Bittern Ixobrychus exilis
    # Count: 1
    Date:
    Observer: William Kaempfer
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  24. Eared Grebe Podiceps nigricollis
    # Count: 8
    Date:
    Observer: Mackenzie Goldthwait
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  25. Barrow's Goldeneye Bucephala islandica
    # Count: 1
    Date:
    Observer: Paula Hansley
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  26. Clark's Grebe Aechmophorus clarkii
    # Count: 1
    Date:
    Observer: Christian Nunes
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  27. Tundra Swan Cygnus columbianus
    # Count: 1
    Date:
    Observer: Betty Glass
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  28. Red Crossbill Loxia curvirostra
    # Count: 1
    Date:
    Observer: Robert Raker
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  29. Common Poorwill Phalaenoptilus nuttallii
    # Count: 1
    Date:
    Observer: Christian Nunes
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  30. Woodhouse's Scrub-Jay Aphelocoma woodhouseii
    # Count: 1
    Date:
    Observer: Patrick McIntyre
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  31. Clark's Nutcracker Nucifraga columbiana
    # Count: 1
    Date:
    Observer: Shan Nagar
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  32. Barn Owl Tyto alba
    # Count: 1
    Date:
    Observer: Ted Floyd
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  33. Tricolored Heron Egretta tricolor
    # Count: 1
    Date:
    Observer: Kiki Widjaja
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  34. Vermilion Flycatcher Pyrocephalus rubinus
    # Count: 1
    Date:
    Observer: Gary Koehn
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  35. Red-naped Sapsucker Sphyrapicus nuchalis
    # Count: 1
    Date:
    Observer: derek brown
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  36. Willet Tringa semipalmata
    # Count: 1
    Date:
    Observer: Sue Riffe
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  37. Semipalmated Sandpiper Calidris pusilla
    # Count: 4
    Date:
    Observer: PAUL PICKERING
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  38. Brown Thrasher Toxostoma rufum
    # Count: 1
    Date:
    Observer: Paula Hansley
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  39. Mountain Bluebird Sialia currucoides
    # Count: 3
    Date:
    Observer: Jan McHugh-Smith
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  40. Magnolia Warbler Setophaga magnolia
    # Count: 1
    Date:
    Observer: Andy Angstrom
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  41. Lark Bunting Calamospiza melanocorys
    # Count: 1
    Date:
    Observer: Phil Thorpe
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  42. Bobolink Dolichonyx oryzivorus
    # Count: 1
    Date:
    Observer: Phil Thorpe
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  43. Green Heron Butorides virescens
    # Count: 1
    Date:
    Observer: Thomas Heinrich
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  44. Willow Flycatcher Empidonax traillii
    # Count: 1
    Date:
    Observer: Jack Bushong
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  45. Townsend's Warbler Setophaga townsendi
    # Count: 1
    Date:
    Observer: Paula Hansley
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  46. White-throated Sparrow Zonotrichia albicollis
    # Count: 1
    Date:
    Observer: Jeff Yegian
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  47. Trumpeter Swan Cygnus buccinator
    # Count: 2
    Date:
    Observer: Rob Cassady
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  48. Greater White-fronted Goose Anser albifrons
    # Count: 1
    Date:
    Observer: Lucian Gaddis
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  49. Red-breasted Merganser Mergus serrator
    # Count: 1
    Date:
    Observer: Thomas Heinrich
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  50. Northern Saw-whet Owl Aegolius acadicus
    # Count: 1
    Date:
    Observer: Bryan Guarente
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  51. Sage Thrasher Oreoscoptes montanus
    # Count: 1
    Date:
    Observer: Sue Riffe
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  52. Palm Warbler Setophaga palmarum
    # Count: 1
    Date:
    Observer: David Waltman
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  53. Virginia's Warbler Leiothlypis virginiae
    # Count: 1
    Date:
    Observer: Jack Bushong
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  54. Summer Tanager Piranga rubra
    # Count: 1
    Date:
    Observer: Alex Smolyanskaya
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  55. Long-billed Dowitcher Limnodromus scolopaceus
    # Count: 1
    Date:
    Observer: Ariana Dickson
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  56. Franklin's Gull Leucophaeus pipixcan
    # Count: 6
    Date:
    Observer: Jeff Percell
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  57. Broad-winged Hawk Buteo platypterus
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  58. Tennessee Warbler Leiothlypis peregrina
    # Count: 1
    Date:
    Observer: Kevin Rutherford
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  59. Least Flycatcher Empidonax minimus
    # Count: 2
    Date:
    Observer: Glenn Walbek
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  60. Vesper Sparrow Pooecetes gramineus
    # Count: 1
    Date:
    Observer: Glenn Walbek
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  61. Dusky Flycatcher Empidonax oberholseri
    # Count: 1
    Date:
    Observer: Paula Hansley
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  62. Little Blue Heron Egretta caerulea
    # Count: 1
    Date:
    Observer: Dan Zmolek
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  63. Black-headed Grosbeak Pheucticus melanocephalus
    # Count: 2
    Date:
    Observer: Renee Casias
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  64. Western Grebe Aechmophorus occidentalis
    # Count: 1
    Date:
    Observer: Janice Rogers
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  65. Loggerhead Shrike Lanius ludovicianus
    # Count: 1
    Date:
    Observer: Jeff Percell
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  66. Lark Sparrow Chondestes grammacus
    # Count: 2
    Date:
    Observer: Emily Braker
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  67. Nashville Warbler Leiothlypis ruficapilla
    # Count: 1
    Date:
    Observer: Sue Riffe
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  68. Blue-gray Gnatcatcher Polioptila caerulea
    # Count: 1
    Date:
    Observer: Valentina Roumi
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  69. Black-throated Blue Warbler Setophaga caerulescens
    # Count: 1
    Date:
    Observer: Valentina Roumi
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  70. Plumbeous Vireo Vireo plumbeus
    # Count: 1
    Date:
    Observer: Dan Brown
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  71. Hermit Thrush Catharus guttatus
    # Count: 1
    Date:
    Observer: Eric DeFonso 🦑
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  72. Ruby-crowned Kinglet Corthylio calendula
    # Count: 1
    Date:
    Observer: Christopher Curwen
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  73. Lesser Black-backed Gull Larus fuscus
    # Count: 1
    Date:
    Observer: Christian Nunes
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  74. Eastern Bluebird Sialia sialis
    # Count: 1
    Date:
    Observer: Leslie S
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  75. Rough-legged Hawk Buteo lagopus
    # Count: 1
    Date:
    Observer: Seneca Tantum
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  76. Western Bluebird Sialia mexicana
    # Count: 1
    Date:
    Observer: Heather Hurford
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  77. Lesser Yellowlegs Tringa flavipes
    # Count: 1
    Date:
    Observer: Paula Hansley
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  78. Eastern Phoebe Sayornis phoebe
    # Count: 1
    Date:
    Observer: Pat Riley
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  79. Swainson's Thrush Catharus ustulatus
    # Count: 1
    Date:
    Observer: Paula Hansley
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  80. Red-eyed Vireo Vireo olivaceus
    # Count: 1
    Date:
    Observer: Paula Hansley
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  81. Northern Parula Setophaga americana
    # Count: 1
    Date:
    Observer: Tom Kresse
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  82. Hammond's Flycatcher Empidonax hammondii
    # Count: 1
    Date:
    Observer: Talya Buitendag
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  83. Olive-sided Flycatcher Contopus cooperi
    # Count: 2
    Date:
    Observer: David Pillmore
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  84. Yellow-headed Blackbird Xanthocephalus xanthocephalus
    # Count: 4
    Date:
    Observer: Paula Hansley
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  85. Band-tailed Pigeon Patagioenas fasciata
    # Count: 1
    Date:
    Observer: Eric Brokaw
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  86. Bushtit Psaltriparus minimus
    # Count: 1
    Date:
    Observer: Eric Brokaw
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  87. Brewer's Blackbird Euphagus cyanocephalus
    # Count: 7
    Date:
    Observer: Kordeen Kor
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  88. Black-chinned Hummingbird Archilochus alexandri
    # Count: 1
    Date:
    Observer: Kathleen Sullivan
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  89. Marsh Wren Cistothorus palustris
    # Count: 1
    Date:
    Observer: Kathleen Sullivan
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  90. Brewer's Sparrow Spizella breweri
    # Count: 3
    Date:
    Observer: Daniel Gelbart
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  91. Swamp Sparrow Melospiza georgiana
    # Count: 1
    Date:
    Observer: Pamela S
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  92. American Goshawk Accipiter atricapillus
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  93. American Pipit Anthus rubescens
    # Count: 1
    Date:
    Observer: Eric DeFonso 🦑
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  94. Red-breasted Nuthatch Sitta canadensis
    # Count: 1
    Date:
    Observer: Eric DeFonso 🦑
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  95. Sedge Wren Cistothorus stellaris
    # Count: 1
    Date:
    Observer: Laura Steadman
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  96. Winter Wren Troglodytes hiemalis
    # Count: 1
    Date:
    Observer: Deb Piranian
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  97. Mountain Chickadee Poecile gambeli
    # Count: 1
    Date:
    Observer: Curtis Beimborn
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  98. Canvasback Aythya valisineria
    # Count: 1
    Date:
    Observer: Christian Nunes
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  99. Harris's Sparrow Zonotrichia querula
    # Count: 2
    Date:
    Observer: Christian Nunes
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  100. Rusty Blackbird Euphagus carolinus
    # Count: 1
    Date:
    Observer: Bruce Raup
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  101. Red-bellied Woodpecker Melanerpes carolinus
    # Count: 1
    Date:
    Observer: Laura Steadman
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  102. Evening Grosbeak Coccothraustes vespertinus
    # Count: 9
    Date:
    Observer: Eric DeFonso 🦑
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  103. Cassin's Finch Haemorhous cassinii
    # Count: 1
    Date:
    Observer: John Rutenbeck
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  104. Eastern Screech-Owl Megascops asio
    # Count: 1
    Date:
    Observer: Ben Sampson
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  105. Herring Gull Larus argentatus
    # Count: 1
    Date:
    Observer: Daniel Gelbart
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  106. Golden Eagle Aquila chrysaetos
    # Count: 1
    Date:
    Observer: Daniel Gelbart
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  107. Steller's Jay Cyanocitta stelleri
    # Count: 2
    Date:
    Observer: Daniel Gelbart
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  108. Ferruginous Hawk Buteo regalis
    # Count: 1
    Date:
    Observer: Daniel Gelbart
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  109. Brown Creeper Certhia americana
    # Count: 1
    Date:
    Observer: Daniel Gelbart
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  110. Ruddy Duck Oxyura jamaicensis
    # Count: 3
    Date:
    Observer: Seth Carvill
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  111. American Dipper Cinclus mexicanus
    # Count: 2
    Date:
    Observer: Adam Johanknecht
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  112. Sharp-shinned Hawk Accipiter striatus
    # Count: 1
    Date:
    Observer: Donna Sichko
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  113. Northern Pintail Anas acuta
    # Count: 2
    Date:
    Observer: Paula Hansley
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  114. Common Merganser Mergus merganser
    # Count: 2
    Date:
    Observer: Paula Hansley
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  115. Northern Shrike Lanius borealis
    # Count: 1
    Date:
    Observer: Patrick Morgan
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  116. Redhead Aythya americana
    # Count: 1
    Date:
    Observer: Bill Bowman
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  117. California Gull Larus californicus
    # Count: 1
    Date:
    Observer: Patrick Morgan
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  118. Greater Scaup Aythya marila
    # Count: 2
    Date:
    Observer: Phil Thorpe
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  119. Townsend's Solitaire Myadestes townsendi
    # Count: 1
    Date:
    Observer: Phil Thorpe
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  120. Peregrine Falcon Falco peregrinus
    # Count: 1
    Date:
    Observer: Micah Yarbrough
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  121. American Tree Sparrow Spizelloides arborea
    # Count: 2
    Date:
    Observer: Micah Yarbrough
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  122. Bufflehead Bucephala albeola
    # Count: 4
    Date:
    Observer: Don Gillespie
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  123. Northern Harrier Circus hudsonius
    # Count: 1
    Date:
    Observer: Dan Brown
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  124. Wild Turkey Meleagris gallopavo
    # Count: 2
    Date:
    Observer: Patrick Morgan
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  125. Lesser Scaup Aythya affinis
    # Count: 1
    Date:
    Observer: Talya Buitendag
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  126. White-throated Swift Aeronautes saxatalis
    # Count: 1
    Date:
    Observer: Talya Buitendag
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  127. Solitary Sandpiper Tringa solitaria
    # Count: 1
    Date:
    Observer: Audrey Anderson
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  128. Merlin Falco columbarius
    # Count: 1
    Date:
    Observer: Audrey Anderson
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  129. Prairie Falcon Falco mexicanus
    # Count: 1
    Date:
    Observer: Kathleen Sullivan
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  130. Green-winged Teal Anas crecca
    # Count: 3
    Date:
    Observer: Will Anderson
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  131. Virginia Rail Rallus limicola
    # Count: 1
    Date:
    Observer: Will Anderson
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  132. American Bittern Botaurus lentiginosus
    # Count: 1
    Date:
    Observer: Will Anderson
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  133. White-faced Ibis Plegadis chihi
    # Count: 4
    Date:
    Observer: Will Anderson
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  134. American Kestrel Falco sparverius
    # Count: 1
    Date:
    Observer: Will Anderson
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  135. Eastern Meadowlark Sturnella magna
    # Count: 1
    Date:
    Observer: Eric DeFonso 🦑
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  136. Savannah Sparrow Passerculus sandwichensis
    # Count: 1
    Date:
    Observer: John Salisbury
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  137. Northern Mockingbird Mimus polyglottos
    # Count: 1
    Date:
    Observer: Emily Warner
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  138. Rose-breasted Grosbeak Pheucticus ludovicianus
    # Count: 1
    Date:
    Observer: Emily Warner
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  139. Sandhill Crane Antigone canadensis
    # Count: 2
    Date:
    Observer: Will Anderson
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  140. Chipping Sparrow Spizella passerina
    # Count: 2
    Date:
    Observer: Kathleen Sullivan
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  141. Lincoln's Sparrow Melospiza lincolnii
    # Count: 2
    Date:
    Observer: Kathleen Sullivan
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  142. Cinnamon Teal Spatula cyanoptera
    # Count: 4
    Date:
    Observer: Judy Mead
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  143. Great-tailed Grackle Quiscalus mexicanus
    # Count: 2
    Date:
    Observer: Seneca Tantum
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  144. American Redstart Setophaga ruticilla
    # Count: 1
    Date:
    Observer: Pamela S
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  145. Rock Wren Salpinctes obsoletus
    # Count: 1
    Date:
    Observer: Robert King
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  146. Wilson's Snipe Gallinago delicata
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  147. Great Horned Owl Bubo virginianus
    # Count: 1
    Date:
    Observer: Paraksh Vankawala
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  148. Northern Waterthrush Parkesia noveboracensis
    # Count: 1
    Date:
    Observer: John Parker
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  149. Lazuli Bunting Passerina amoena
    # Count: 1
    Date:
    Observer: Lisa Melli Gillespie
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  150. Broad-tailed Hummingbird Selasphorus platycercus
    # Count: 1
    Date:
    Observer: Paula Hansley
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  151. Common Nighthawk Chordeiles minor
    # Count: 1
    Date:
    Observer: Dan Zmolek
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  152. Pine Siskin Spinus pinus
    # Count: 1
    Date:
    Observer: Joo Tan
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  153. Dark-eyed Junco Junco hyemalis
    # Count: 1
    Date:
    Observer: Joo Tan
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  154. Orange-crowned Warbler Leiothlypis celata
    # Count: 1
    Date:
    Observer: Robert King
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  155. Wilson's Warbler Cardellina pusilla
    # Count: 1
    Date:
    Observer: Robert King
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  156. Western Tanager Piranga ludoviciana
    # Count: 1
    Date:
    Observer: Barbara Retzlaff
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  157. Green-tailed Towhee Pipilo chlorurus
    # Count: 1
    Date:
    Observer: Gage Lyons
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  158. Pied-billed Grebe Podilymbus podiceps
    # Count: 3
    Date:
    Observer: Karen Freundlich
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  159. White-breasted Nuthatch Sitta carolinensis
    # Count: 1
    Date:
    Observer: Karen Freundlich
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  160. Great Egret Ardea alba
    # Count: 1
    Date:
    Observer: John Rutenbeck
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  161. Hooded Merganser Lophodytes cucullatus
    # Count: 1
    Date:
    Observer: Alexander Brown
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  162. Common Goldeneye Bucephala clangula
    # Count: 2
    Date:
    Observer: Alexander Brown
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  163. Ring-billed Gull Larus delawarensis
    # Count: 25
    Date:
    Observer: Mike Crawford
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  164. Bald Eagle Haliaeetus leucocephalus
    # Count: 1
    Date:
    Observer: Mike Crawford
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  165. Cackling Goose Branta hutchinsii
    # Count: 26
    Date:
    Observer: Sue Riffe
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  166. American Wigeon Mareca americana
    # Count: 5
    Date:
    Observer: Sue Riffe
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  167. Blue-winged Teal Spatula discors
    # Count: X
    Date:
    Observer: Seth Carvill
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  168. Black-necked Stilt Himantopus mexicanus
    # Count: 1
    Date:
    Observer: Seth Carvill
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  169. Ring-necked Duck Aythya collaris
    # Count: 6
    Date:
    Observer: Philip McNichols
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  170. Greater Yellowlegs Tringa melanoleuca
    # Count: 1
    Date:
    Observer: Philip McNichols
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  171. Yellow-rumped Warbler Setophaga coronata
    # Count: 1
    Date:
    Observer: Philip McNichols
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  172. Northern Shoveler Spatula clypeata
    # Count: 6
    Date:
    Observer: Michael Morton
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  173. Sora Porzana carolina
    # Count: 1
    Date:
    Observer: Heather Wright
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  174. American Avocet Recurvirostra americana
    # Count: 2
    Date:
    Observer: Heather Wright
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  175. Wilson's Phalarope Phalaropus tricolor
    # Count: 4
    Date:
    Observer: Heather Wright
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  176. Snowy Egret Egretta thula
    # Count: 1
    Date:
    Observer: Julie Thompson
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  177. Swainson's Hawk Buteo swainsoni
    # Count: 1
    Date:
    Observer: Julie Thompson
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  178. Clay-colored Sparrow Spizella pallida
    # Count: 1
    Date:
    Observer: Julie Thompson
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  179. American Coot Fulica americana
    # Count: 3
    Date:
    Observer: Don Gillespie
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  180. Spotted Sandpiper Actitis macularius
    # Count: X
    Date:
    Observer: Anonymous eBirder
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  181. Hairy Woodpecker Dryobates villosus
    # Count: X
    Date:
    Observer: Anonymous eBirder
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  182. Black-billed Magpie Pica hudsonia
    # Count: X
    Date:
    Observer: Anonymous eBirder
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  183. White-crowned Sparrow Zonotrichia leucophrys
    # Count: X
    Date:
    Observer: Anonymous eBirder
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  184. MacGillivray's Warbler Geothlypis tolmiei
    # Count: X
    Date:
    Observer: Anonymous eBirder
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  185. Gadwall Mareca strepera
    # Count: 7
    Date:
    Observer: David Kwasnick
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  186. Semipalmated Plover Charadrius semipalmatus
    # Count: 1
    Date:
    Observer: David Kwasnick
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  187. Black-crowned Night Heron Nycticorax nycticorax
    # Count: 1
    Date:
    Observer: David Kwasnick
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  188. Western Kingbird Tyrannus verticalis
    # Count: 5
    Date:
    Observer: David Kwasnick
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  189. Common Raven Corvus corax
    # Count: 1
    Date:
    Observer: David Kwasnick
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  190. Red-tailed Hawk Buteo jamaicensis
    # Count: 2
    Date:
    Observer: Susan Ringoen
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  191. Orchard Oriole Icterus spurius
    # Count: 1
    Date:
    Observer: Susan Ringoen
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  192. American White Pelican Pelecanus erythrorhynchos
    # Count: 1
    Date:
    Observer: Zach Wilson
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  193. Eurasian Collared-Dove Streptopelia decaocto
    # Count: 3
    Date:
    Observer: Kieran Schnitzspahn
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  194. Western Flycatcher Empidonax difficilis
    # Count: 1
    Date:
    Observer: Kieran Schnitzspahn
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  195. Bank Swallow Riparia riparia
    # Count: 2
    Date:
    Observer: Kieran Schnitzspahn
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  196. House Finch Haemorhous mexicanus
    # Count: 1
    Date:
    Observer: Kieran Schnitzspahn
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  197. Wood Duck Aix sponsa
    # Count: 3
    Date:
    Observer: Valentina Roumi
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  198. Double-crested Cormorant Nannopterum auritum
    # Count: 3
    Date:
    Observer: Valentina Roumi
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  199. Belted Kingfisher Megaceryle alcyon
    # Count: 1
    Date:
    Observer: Valentina Roumi
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  200. Blue Jay Cyanocitta cristata
    # Count: 8
    Date:
    Observer: Valentina Roumi
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  201. American Crow Corvus brachyrhynchos
    # Count: 1
    Date:
    Observer: Valentina Roumi
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  202. Northern Rough-winged Swallow Stelgidopteryx serripennis
    # Count: 2
    Date:
    Observer: Valentina Roumi
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  203. Barn Swallow Hirundo rustica
    # Count: 3
    Date:
    Observer: Valentina Roumi
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  204. Cliff Swallow Petrochelidon pyrrhonota
    # Count: 2
    Date:
    Observer: Valentina Roumi
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  205. Lesser Goldfinch Spinus psaltria
    # Count: 1
    Date:
    Observer: Valentina Roumi
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  206. Spotted Towhee Pipilo maculatus
    # Count: 2
    Date:
    Observer: Valentina Roumi
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  207. Western Meadowlark Sturnella neglecta
    # Count: 2
    Date:
    Observer: Valentina Roumi
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  208. Mallard Anas platyrhynchos
    # Count: 1
    Date:
    Observer: Mel Sok
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  209. Tree Swallow Tachycineta bicolor
    # Count: 4
    Date:
    Observer: Mel Sok
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  210. European Starling Sturnus vulgaris
    # Count: 7
    Date:
    Observer: Mel Sok
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  211. Rock Pigeon Columba livia
    # Count: 10
    Date:
    Observer: Laura Harris
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  212. Turkey Vulture Cathartes aura
    # Count: 1
    Date:
    Observer: Laura Harris
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  213. Warbling Vireo Vireo gilvus
    # Count: 2
    Date:
    Observer: Laura Harris
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  214. Gray Catbird Dumetella carolinensis
    # Count: 1
    Date:
    Observer: Laura Harris
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  215. American Goldfinch Spinus tristis
    # Count: 3
    Date:
    Observer: Laura Harris
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  216. Yellow-breasted Chat Icteria virens
    # Count: 1
    Date:
    Observer: Laura Harris
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  217. Bullock's Oriole Icterus bullockii
    # Count: 2
    Date:
    Observer: Laura Harris
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  218. Common Yellowthroat Geothlypis trichas
    # Count: 2
    Date:
    Observer: Laura Harris
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  219. Blue Grosbeak Passerina caerulea
    # Count: 1
    Date:
    Observer: Laura Harris
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  220. Killdeer Charadrius vociferus
    # Count: 5
    Date:
    Observer: Cedric Zeller
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  221. Say's Phoebe Sayornis saya
    # Count: 1
    Date:
    Observer: Cedric Zeller
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  222. Eastern Kingbird Tyrannus tyrannus
    # Count: 3
    Date:
    Observer: Cedric Zeller
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  223. Violet-green Swallow Tachycineta thalassina
    # Count: 1
    Date:
    Observer: Cedric Zeller
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  224. Canada Goose Branta canadensis
    # Count: 28
    Date:
    Observer: Don Gillespie
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  225. Mourning Dove Zenaida macroura
    # Count: 7
    Date:
    Observer: Don Gillespie
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  226. Great Blue Heron Ardea herodias
    # Count: 2
    Date:
    Observer: Don Gillespie
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  227. Osprey Pandion haliaetus
    # Count: 4
    Date:
    Observer: Don Gillespie
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  228. Cooper's Hawk Accipiter cooperii
    # Count: 1
    Date:
    Observer: Don Gillespie
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  229. Downy Woodpecker Dryobates pubescens
    # Count: 1
    Date:
    Observer: Don Gillespie
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  230. Northern Flicker Colaptes auratus
    # Count: 3
    Date:
    Observer: Don Gillespie
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  231. Western Wood-Pewee Contopus sordidulus
    # Count: 1
    Date:
    Observer: Don Gillespie
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  232. Black-capped Chickadee Poecile atricapillus
    # Count: 1
    Date:
    Observer: Don Gillespie
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  233. House Wren Troglodytes aedon
    # Count: 3
    Date:
    Observer: Don Gillespie
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  234. American Robin Turdus migratorius
    # Count: 4
    Date:
    Observer: Don Gillespie
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  235. Cedar Waxwing Bombycilla cedrorum
    # Count: 1
    Date:
    Observer: Don Gillespie
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  236. House Sparrow Passer domesticus
    # Count: 2
    Date:
    Observer: Don Gillespie
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  237. Song Sparrow Melospiza melodia
    # Count: 1
    Date:
    Observer: Don Gillespie
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  238. Red-winged Blackbird Agelaius phoeniceus
    # Count: 10
    Date:
    Observer: Don Gillespie
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  239. Brown-headed Cowbird Molothrus ater
    # Count: 1
    Date:
    Observer: Don Gillespie
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  240. Common Grackle Quiscalus quiscula
    # Count: 3
    Date:
    Observer: Don Gillespie
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  241. Yellow Warbler Setophaga petechia
    # Count: 4
    Date:
    Observer: Don Gillespie
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only

Exotic: Provisional (1)

  1. Ring-necked Pheasant Phasianus colchicus
    # Count: 1
    Date:
    Observer: Laurens Halsey
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only

Exotic: Escapee (2)

  1. Indian Peafowl Pavo cristatus
    # Count: 1
    Date:
    Observer: Ted Floyd
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  2. Red Junglefowl Gallus gallus
    # Count: 2
    Date:
    Observer: Ted Floyd
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only

Hybrids (2)

  1. Graylag x Canada Goose (hybrid) Anser anser x Branta canadensis
    # Count: 1
    Date:
    Observer:
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  2. Bullock's x Baltimore Oriole (hybrid) Icterus bullockii x galbula
    # Count: 1
    Date:
    Observer: Kieran Schnitzspahn
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only

Additional Taxa (65)

  1. Rusty/Brewer's Blackbird Euphagus carolinus/cyanocephalus
    # Count: X
    Date:
    Observer: Lou Murray
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  2. Spotted/Eastern Towhee (Rufous-sided Towhee) Pipilo maculatus/erythrophthalmus
    # Count: 1
    Date:
    Observer: Bruce Bosley
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  3. tern sp. Sterninae sp.
    # Count: 3
    Date:
    Observer: Narca Moore
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  4. Blue-winged/Cinnamon Teal Spatula discors/cyanoptera
    # Count: 300
    Date:
    Observer: Narca Moore
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  5. Catharus sp. Catharus sp.
    # Count: 1
    Date:
    Observer: Laurens Halsey
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  6. Lesser/Greater Yellowlegs Tringa flavipes/melanoleuca
    # Count: X
    Date:
    Observer: Leslie Holzmann
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  7. small falcon sp. Falco sp. (small falcon sp.)
    # Count: 1
    Date:
    Observer: Paula Hansley
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  8. plover sp. Charadriidae sp.
    # Count: 1
    Date:
    Observer: Jonelle Balais
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  9. Spizella sp. Spizella sp.
    # Count: 2
    Date:
    Observer: Earl Johnson
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  10. shorebird sp. Charadriiformes sp.
    # Count: 1
    Date:
    Observer: Holden Maxfield
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  11. Double-crested/Neotropic Cormorant Nannopterum auritum/brasilianum
    # Count: 1
    Date:
    Observer: David Tyra
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  12. wren sp. Troglodytidae sp.
    # Count: 1
    Date:
    Observer: David Tyra
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  13. teal sp. Anatidae sp. (teal sp.)
    # Count: 3
    Date:
    Observer: Michael Patterson
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  14. Loggerhead/Northern Shrike Lanius ludovicianus/borealis
    # Count: 1
    Date:
    Observer: Jean Folsom
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  15. Glossy/White-faced Ibis Plegadis falcinellus/chihi
    # Count: 4
    Date:
    Observer: Sheridan Samano
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  16. Sturnella meadowlark sp. Sturnella sp.
    # Count: 1
    Date:
    Observer: derek brown
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  17. Bullock's/Baltimore Oriole Icterus bullockii/galbula
    # Count: 2
    Date:
    Observer: Andy Angstrom
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  18. Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/traillii
    # Count: 1
    Date:
    Observer: Jack Bushong
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  19. new world oriole sp. Icterus sp.
    # Count: 1
    Date:
    Observer: Jack Bushong
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  20. nuthatch sp. Sitta sp.
    # Count: 1
    Date:
    Observer: Paula Hansley
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  21. Common/Barrow's Goldeneye Bucephala clangula/islandica
    # Count: 4
    Date:
    Observer: Lindsay Young
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  22. finch sp. Fringillidae sp.
    # Count: 4
    Date:
    Observer: Philip McNichols
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  23. Aythya sp. Aythya sp.
    # Count: 3
    Date:
    Observer: Nathan Pieplow
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  24. Common/Red-breasted Merganser Mergus merganser/serrator
    # Count: 10
    Date:
    Observer: Lucian Gaddis
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  25. raven sp. Corvus sp. (raven sp.)
    # Count: 2
    Date:
    Observer: Lucian Gaddis
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  26. bluebird sp. Sialia sp.
    # Count: 2
    Date:
    Observer: Paula Hansley
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  27. Greater/Lesser Scaup Aythya marila/affinis
    # Count: 2
    Date:
    Observer: Jason Cole
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  28. falcon sp. Falco sp.
    # Count: 1
    Date:
    Observer: Sheridan Samano
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  29. towhee sp. Melozone/Pipilo sp.
    # Count: 1
    Date:
    Observer: Glenn Walbek
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  30. Western/Clark's Grebe Aechmophorus occidentalis/clarkii
    # Count: 1
    Date:
    Observer: Steve Kerchner
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  31. Tree/Violet-green Swallow Tachycineta bicolor/thalassina
    # Count: 4
    Date:
    Observer: Andy Angstrom
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  32. pewee sp. (Contopus sp.) Contopus sp.
    # Count: 1
    Date:
    Observer: Laura Pollock
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  33. white egret sp. Egretta/Bubulcus/Ardea sp.
    # Count: 2
    Date:
    Observer: Thomas Lopez
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  34. new world goldfinch sp. Spinus sp. (goldfinch sp.)
    # Count: X
    Date:
    Observer: Charles Lopez
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  35. hummingbird sp. Trochilidae sp.
    # Count: 1
    Date:
    Observer: Emily Braker
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  36. vireo sp. Vireo sp.
    # Count: 1
    Date:
    Observer: Patricia Cullen
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  37. Black-capped/Mountain Chickadee Poecile atricapillus/gambeli
    # Count: 1
    Date:
    Observer: Paula Hansley
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  38. diurnal raptor sp. Accipitriformes/Falconiformes sp.
    # Count: 1
    Date:
    Observer: Charles Lopez
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  39. Buteo/eagle sp. Buteo/eagle sp.
    # Count: 1
    Date:
    Observer: Patricia Cullen
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  40. Accipiter sp. Accipiter sp.
    # Count: 1
    Date:
    Observer: Christian Nunes
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  41. Golden/Bald Eagle Aquila chrysaetos/Haliaeetus leucocephalus
    # Count: 1
    Date:
    Observer: Deb Piranian
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  42. Cassin's/Plumbeous Vireo Vireo cassinii/plumbeus
    # Count: 1
    Date:
    Observer: Paula Hansley
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  43. grackle sp. Quiscalus sp.
    # Count: X
    Date:
    Observer: Christine Washington
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  44. Empidonax sp. Empidonax sp.
    # Count: 1
    Date:
    Observer: Paula Hansley
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  45. grebe sp. Podicipedidae sp.
    # Count: 11
    Date:
    Observer: Christine Snitkin
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  46. Bohemian/Cedar Waxwing Bombycilla garrulus/cedrorum
    # Count: 1
    Date:
    Observer: Kordeen Kor
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  47. Downy/Hairy Woodpecker Dryobates pubescens/villosus
    # Count: 1
    Date:
    Observer: Daniel Gelbart
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  48. dabbling duck sp. Anatidae sp. (dabbling duck sp.)
    # Count: 9
    Date:
    Observer: Anonymous eBirder
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  49. Buteo sp. Buteo sp.
    # Count: 1
    Date:
    Observer: Curtis Beimborn
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  50. hawk sp. Accipitridae sp. (hawk sp.)
    # Count: 1
    Date:
    Observer: Christine J
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  51. woodpecker sp. Picidae sp.
    # Count: 1
    Date:
    Observer: Patricia Cullen
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  52. blackbird sp. Icteridae sp.
    # Count: 2
    Date:
    Observer: Jeff Percell
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  53. passerine sp. Passeriformes sp.
    # Count: 2
    Date:
    Observer: Jeff Percell
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  54. Larus sp. Larus sp.
    # Count: 60
    Date:
    Observer: Daniel Gelbart
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  55. crow/raven sp. Corvus sp.
    # Count: 40
    Date:
    Observer: Daniel Gelbart
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  56. swallow sp. Hirundinidae sp.
    # Count: 4
    Date:
    Observer: Dan Brown
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  57. new world sparrow sp. Passerellidae sp.
    # Count: 1
    Date:
    Observer: Dan Brown
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  58. duck sp. Anatidae (duck sp.)
    # Count: 2
    Date:
    Observer: Paula Hansley
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  59. new world warbler sp. Parulidae sp.
    # Count: 2
    Date:
    Observer: Paula Hansley
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  60. new world flycatcher sp. Tyrannidae sp.
    # Count: 1
    Date:
    Observer: Barbara Retzlaff
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  61. pigeon/dove sp. Columbidae sp.
    # Count: 10
    Date:
    Observer: Karen Freundlich
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  62. Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperii
    # Count: 1
    Date:
    Observer: Karen Freundlich
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  63. gull sp. Larinae sp.
    # Count: 1
    Date:
    Observer: Paraksh Vankawala
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  64. Mallard/Mexican Duck Anas platyrhynchos/diazi
    # Count: 4
    Date:
    Observer: Yeida Chang
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only
  65. Cackling/Canada Goose Branta hutchinsii/canadensis
    # Count: 18
    Date:
    Observer: Alexander Brown
    Location: Walden Ponds Wildlife Habitat--Sawhill Ponds only