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Difficult Run Stream Valley Park (Oakton)

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Bird List

Updated ~9 seconds ago
157 All Years 69 This Year 2024 0 This Month Jun 2024
Last Observed First Observed High Count

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  1. Species Name
    Count
    Date
    Observer
    Location

Native and Naturalized (157)

  1. White-eyed Vireo Vireo griseus
    # Count: 7
    Date:
    Observer: Frederick Atwood
    Location: Difficult Run Stream Valley Park (Oakton)
  2. Bobolink Dolichonyx oryzivorus
    # Count: 3
    Date:
    Observer: Frederick Atwood
    Location: Difficult Run Stream Valley Park (Oakton)
  3. Kentucky Warbler Geothlypis formosa
    # Count: 1
    Date:
    Observer: Frederick Atwood
    Location: Difficult Run Stream Valley Park (Oakton)
  4. Savannah Sparrow Passerculus sandwichensis
    # Count: 2
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  5. Scarlet Tanager Piranga olivacea
    # Count: 6
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  6. Purple Martin Progne subis
    # Count: 10
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  7. Wilson's Snipe Gallinago delicata
    # Count: 1
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  8. Yellow-rumped Warbler Setophaga coronata
    # Count: 30
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  9. Mourning Dove Zenaida macroura
    # Count: 40
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  10. Turkey Vulture Cathartes aura
    # Count: 30
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  11. Red-bellied Woodpecker Melanerpes carolinus
    # Count: 16
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  12. Rusty Blackbird Euphagus carolinus
    # Count: 3
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  13. American Goldfinch Spinus tristis
    # Count: 150
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  14. Canada Goose Branta canadensis
    # Count: 196
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  15. House Finch Haemorhous mexicanus
    # Count: 9
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  16. Black Vulture Coragyps atratus
    # Count: 12
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  17. Chimney Swift Chaetura pelagica
    # Count: 200
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  18. Broad-winged Hawk Buteo platypterus
    # Count: 135
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  19. White-crowned Sparrow Zonotrichia leucophrys
    # Count: 1
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  20. Red-tailed Hawk Buteo jamaicensis
    # Count: 5
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  21. Eastern Bluebird Sialia sialis
    # Count: 20
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  22. Tundra Swan Cygnus columbianus
    # Count: 35
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  23. Dark-eyed Junco Junco hyemalis
    # Count: 105
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  24. American Black Duck Anas rubripes
    # Count: 3
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  25. Red-shouldered Hawk Buteo lineatus
    # Count: 7
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  26. Hooded Merganser Lophodytes cucullatus
    # Count: 2
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  27. Fox Sparrow Passerella iliaca
    # Count: 8
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  28. Grasshopper Sparrow Ammodramus savannarum
    # Count: 1
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  29. Common Grackle Quiscalus quiscula
    # Count: 1000
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  30. Northern Harrier Circus hudsonius
    # Count: 1
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  31. Fish Crow Corvus ossifragus
    # Count: 350
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  32. Pine Siskin Spinus pinus
    # Count: 10
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  33. White-throated Sparrow Zonotrichia albicollis
    # Count: 180
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  34. Golden-winged Warbler Vermivora chrysoptera
    # Count: 1
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  35. Common Nighthawk Chordeiles minor
    # Count: 23
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  36. Common Loon Gavia immer
    # Count: 5
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  37. Eastern Towhee Pipilo erythrophthalmus
    # Count: 16
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  38. Field Sparrow Spizella pusilla
    # Count: 13
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  39. Ring-billed Gull Larus delawarensis
    # Count: 4
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  40. Yellow-bellied Flycatcher Empidonax flaviventris
    # Count: 1
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  41. American Crow Corvus brachyrhynchos
    # Count: 292
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  42. Gray-cheeked Thrush Catharus minimus
    # Count: 2
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  43. Black-billed Cuckoo Coccyzus erythropthalmus
    # Count: 1
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  44. Blue Jay Cyanocitta cristata
    # Count: 125
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  45. European Starling Sturnus vulgaris
    # Count: 70
    Date:
    Observer: Amiel Hopkins
    Location: Difficult Run Stream Valley Park (Oakton)
  46. Mallard Anas platyrhynchos
    # Count: 45
    Date:
    Observer: Amiel Hopkins
    Location: Difficult Run Stream Valley Park (Oakton)
  47. Tree Swallow Tachycineta bicolor
    # Count: 10
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  48. Song Sparrow Melospiza melodia
    # Count: 55
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  49. Northern Cardinal Cardinalis cardinalis
    # Count: 50
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  50. Northern Flicker Colaptes auratus
    # Count: 31
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  51. Golden-crowned Kinglet Regulus satrapa
    # Count: 18
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  52. Brown Creeper Certhia americana
    # Count: 5
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  53. Great Blue Heron Ardea herodias
    # Count: 5
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  54. Yellow-bellied Sapsucker Sphyrapicus varius
    # Count: 6
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  55. Hermit Thrush Catharus guttatus
    # Count: 10
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  56. Palm Warbler Setophaga palmarum
    # Count: 8
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  57. Blue-gray Gnatcatcher Polioptila caerulea
    # Count: 23
    Date:
    Observer: Amiel Hopkins
    Location: Difficult Run Stream Valley Park (Oakton)
  58. Pine Warbler Setophaga pinus
    # Count: 4
    Date:
    Observer: Amiel Hopkins
    Location: Difficult Run Stream Valley Park (Oakton)
  59. Blue-headed Vireo Vireo solitarius
    # Count: 3
    Date:
    Observer: Jan Kool
    Location: Difficult Run Stream Valley Park (Oakton)
  60. Double-crested Cormorant Nannopterum auritum
    # Count: 25
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  61. Prothonotary Warbler Protonotaria citrea
    # Count: 1
    Date:
    Observer: stephen johnson šŸ¦œ
    Location: Difficult Run Stream Valley Park (Oakton)
  62. Ovenbird Seiurus aurocapilla
    # Count: 15
    Date:
    Observer: Amiel Hopkins
    Location: Difficult Run Stream Valley Park (Oakton)
  63. Belted Kingfisher Megaceryle alcyon
    # Count: 2
    Date:
    Observer: Tucker Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  64. Northern Waterthrush Parkesia noveboracensis
    # Count: 2
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  65. Wood Thrush Hylocichla mustelina
    # Count: 6
    Date:
    Observer: Amiel Hopkins
    Location: Difficult Run Stream Valley Park (Oakton)
  66. Spotted Sandpiper Actitis macularius
    # Count: 1
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  67. Cape May Warbler Setophaga tigrina
    # Count: 2
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  68. Bay-breasted Warbler Setophaga castanea
    # Count: 4
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  69. Canada Warbler Cardellina canadensis
    # Count: 5
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  70. Cedar Waxwing Bombycilla cedrorum
    # Count: 135
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  71. Yellow-breasted Chat Icteria virens
    # Count: 1
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  72. Cooper's Hawk Accipiter cooperii
    # Count: 5
    Date:
    Observer: Mark S. Hoffman
    Location: Difficult Run Stream Valley Park (Oakton)
  73. Worm-eating Warbler Helmitheros vermivorum
    # Count: 1
    Date:
    Observer: Mark S. Hoffman
    Location: Difficult Run Stream Valley Park (Oakton)
  74. Willow Flycatcher Empidonax traillii
    # Count: 2
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  75. Brown-headed Cowbird Molothrus ater
    # Count: 4
    Date:
    Observer: Tucker Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  76. Great Crested Flycatcher Myiarchus crinitus
    # Count: 6
    Date:
    Observer: Amiel Hopkins
    Location: Difficult Run Stream Valley Park (Oakton)
  77. Northern Rough-winged Swallow Stelgidopteryx serripennis
    # Count: 2
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  78. Orchard Oriole Icterus spurius
    # Count: 2
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  79. Blue Grosbeak Passerina caerulea
    # Count: 3
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  80. Acadian Flycatcher Empidonax virescens
    # Count: 15
    Date:
    Observer: Amiel Hopkins
    Location: Difficult Run Stream Valley Park (Oakton)
  81. Eastern Phoebe Sayornis phoebe
    # Count: 10
    Date:
    Observer: Amiel Hopkins
    Location: Difficult Run Stream Valley Park (Oakton)
  82. Tufted Titmouse Baeolophus bicolor
    # Count: 30
    Date:
    Observer: Amiel Hopkins
    Location: Difficult Run Stream Valley Park (Oakton)
  83. Eastern Wood-Pewee Contopus virens
    # Count: 10
    Date:
    Observer: Amiel Hopkins
    Location: Difficult Run Stream Valley Park (Oakton)
  84. Red-winged Blackbird Agelaius phoeniceus
    # Count: 31
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  85. Yellow-billed Cuckoo Coccyzus americanus
    # Count: 16
    Date:
    Observer: Amiel Hopkins
    Location: Difficult Run Stream Valley Park (Oakton)
  86. Ruby-throated Hummingbird Archilochus colubris
    # Count: 10
    Date:
    Observer: Amiel Hopkins
    Location: Difficult Run Stream Valley Park (Oakton)
  87. Gray Catbird Dumetella carolinensis
    # Count: 25
    Date:
    Observer: Amiel Hopkins
    Location: Difficult Run Stream Valley Park (Oakton)
  88. Solitary Sandpiper Tringa solitaria
    # Count: 2
    Date:
    Observer: Amiel Hopkins
    Location: Difficult Run Stream Valley Park (Oakton)
  89. Green Heron Butorides virescens
    # Count: 1
    Date:
    Observer: Amiel Hopkins
    Location: Difficult Run Stream Valley Park (Oakton)
  90. Prairie Warbler Setophaga discolor
    # Count: 2
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  91. Merlin Falco columbarius
    # Count: 1
    Date:
    Observer: Amiel Hopkins
    Location: Difficult Run Stream Valley Park (Oakton)
  92. Warbling Vireo Vireo gilvus
    # Count: 1
    Date:
    Observer: Amiel Hopkins
    Location: Difficult Run Stream Valley Park (Oakton)
  93. Carolina Chickadee Poecile carolinensis
    # Count: 40
    Date:
    Observer: Amiel Hopkins
    Location: Difficult Run Stream Valley Park (Oakton)
  94. Carolina Wren Thryothorus ludovicianus
    # Count: 28
    Date:
    Observer: Amiel Hopkins
    Location: Difficult Run Stream Valley Park (Oakton)
  95. Northern Mockingbird Mimus polyglottos
    # Count: 5
    Date:
    Observer: Amiel Hopkins
    Location: Difficult Run Stream Valley Park (Oakton)
  96. Veery Catharus fuscescens
    # Count: 8
    Date:
    Observer: Amiel Hopkins
    Location: Difficult Run Stream Valley Park (Oakton)
  97. Chestnut-sided Warbler Setophaga pensylvanica
    # Count: 10
    Date:
    Observer: Amiel Hopkins
    Location: Difficult Run Stream Valley Park (Oakton)
  98. Black-throated Blue Warbler Setophaga caerulescens
    # Count: 9
    Date:
    Observer: Amiel Hopkins
    Location: Difficult Run Stream Valley Park (Oakton)
  99. House Wren Troglodytes aedon
    # Count: 8
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  100. Swainson's Thrush Catharus ustulatus
    # Count: 6
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  101. Black-and-white Warbler Mniotilta varia
    # Count: 20
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  102. Tennessee Warbler Leiothlypis peregrina
    # Count: 3
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  103. American Redstart Setophaga ruticilla
    # Count: 30
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  104. Northern Parula Setophaga americana
    # Count: 12
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  105. Magnolia Warbler Setophaga magnolia
    # Count: 12
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  106. Black-crowned Night Heron Nycticorax nycticorax
    # Count: 1
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  107. Rose-breasted Grosbeak Pheucticus ludovicianus
    # Count: 6
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  108. American Kestrel Falco sparverius
    # Count: 2
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  109. Olive-sided Flycatcher Contopus cooperi
    # Count: 1
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  110. Blackburnian Warbler Setophaga fusca
    # Count: 4
    Date:
    Observer: Frederick Atwood
    Location: Difficult Run Stream Valley Park (Oakton)
  111. Blackpoll Warbler Setophaga striata
    # Count: 5
    Date:
    Observer: Frederick Atwood
    Location: Difficult Run Stream Valley Park (Oakton)
  112. Black-throated Green Warbler Setophaga virens
    # Count: 9
    Date:
    Observer: Frederick Atwood
    Location: Difficult Run Stream Valley Park (Oakton)
  113. Wilson's Warbler Cardellina pusilla
    # Count: 3
    Date:
    Observer: Frederick Atwood
    Location: Difficult Run Stream Valley Park (Oakton)
  114. Common Yellowthroat Geothlypis trichas
    # Count: 30
    Date:
    Observer: Amiel Hopkins
    Location: Difficult Run Stream Valley Park (Oakton)
  115. American Bittern Botaurus lentiginosus
    # Count: 1
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  116. Rock Pigeon Columba livia
    # Count: 15
    Date:
    Observer: Amiel Hopkins
    Location: Difficult Run Stream Valley Park (Oakton)
  117. Lincoln's Sparrow Melospiza lincolnii
    # Count: 2
    Date:
    Observer: Amiel Hopkins
    Location: Difficult Run Stream Valley Park (Oakton)
  118. Swamp Sparrow Melospiza georgiana
    # Count: 25
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  119. Ruby-crowned Kinglet Corthylio calendula
    # Count: 20
    Date:
    Observer: Amiel Hopkins
    Location: Difficult Run Stream Valley Park (Oakton)
  120. Chipping Sparrow Spizella passerina
    # Count: 8
    Date:
    Observer: Jan Kool
    Location: Difficult Run Stream Valley Park (Oakton)
  121. Red-breasted Nuthatch Sitta canadensis
    # Count: 2
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  122. Bald Eagle Haliaeetus leucocephalus
    # Count: 2
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  123. American Robin Turdus migratorius
    # Count: 160
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  124. Barred Owl Strix varia
    # Count: 4
    Date:
    Observer: Amiel Hopkins
    Location: Difficult Run Stream Valley Park (Oakton)
  125. Louisiana Waterthrush Parkesia motacilla
    # Count: 4
    Date:
    Observer: Amiel Hopkins
    Location: Difficult Run Stream Valley Park (Oakton)
  126. Hairy Woodpecker Dryobates villosus
    # Count: 4
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  127. Eastern Kingbird Tyrannus tyrannus
    # Count: 4
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  128. Baltimore Oriole Icterus galbula
    # Count: 4
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  129. Red-eyed Vireo Vireo olivaceus
    # Count: 22
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  130. Barn Swallow Hirundo rustica
    # Count: 2
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  131. White-breasted Nuthatch Sitta carolinensis
    # Count: 14
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  132. House Sparrow Passer domesticus
    # Count: 15
    Date:
    Observer: Amiel Hopkins
    Location: Difficult Run Stream Valley Park (Oakton)
  133. Blue-winged Warbler Vermivora cyanoptera
    # Count: 2
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  134. Nashville Warbler Leiothlypis ruficapilla
    # Count: 2
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  135. Least Flycatcher Empidonax minimus
    # Count: 1
    Date:
    Observer: Amiel Hopkins
    Location: Difficult Run Stream Valley Park (Oakton)
  136. Wood Duck Aix sponsa
    # Count: 9
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  137. Brown Thrasher Toxostoma rufum
    # Count: 4
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  138. Red-headed Woodpecker Melanerpes erythrocephalus
    # Count: 2
    Date:
    Observer: stephen johnson šŸ¦œ
    Location: Difficult Run Stream Valley Park (Oakton)
  139. Yellow-throated Vireo Vireo flavifrons
    # Count: 2
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  140. Mourning Warbler Geothlypis philadelphia
    # Count: 1
    Date:
    Observer: Daniel Lebbin
    Location: Difficult Run Stream Valley Park (Oakton)
  141. Yellow Warbler Setophaga petechia
    # Count: 1
    Date:
    Observer: Cara Young
    Location: Difficult Run Stream Valley Park (Oakton)
  142. Marsh Wren Cistothorus palustris
    # Count: 1
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  143. Sharp-shinned Hawk Accipiter striatus
    # Count: 2
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  144. Winter Wren Troglodytes hiemalis
    # Count: 11
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  145. American Woodcock Scolopax minor
    # Count: 1
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  146. Peregrine Falcon Falco peregrinus
    # Count: 1
    Date:
    Observer: Sarah Hollingsworth
    Location: Difficult Run Stream Valley Park (Oakton)
  147. Common Raven Corvus corax
    # Count: 3
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  148. Purple Finch Haemorhous purpureus
    # Count: 9
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  149. Pileated Woodpecker Dryocopus pileatus
    # Count: 6
    Date:
    Observer: Adrin A.
    Location: Difficult Run Stream Valley Park (Oakton)
  150. Osprey Pandion haliaetus
    # Count: 2
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  151. Hooded Warbler Setophaga citrina
    # Count: 2
    Date:
    Observer: Adrin A.
    Location: Difficult Run Stream Valley Park (Oakton)
  152. Yellow-throated Warbler Setophaga dominica
    # Count: 1
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  153. Indigo Bunting Passerina cyanea
    # Count: 10
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  154. Philadelphia Vireo Vireo philadelphicus
    # Count: 1
    Date:
    Observer: Megan Massa
    Location: Difficult Run Stream Valley Park (Oakton)
  155. Wild Turkey Meleagris gallopavo
    # Count: 9
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  156. Downy Woodpecker Dryobates pubescens
    # Count: 15
    Date:
    Observer: Sarah Hollingsworth
    Location: Difficult Run Stream Valley Park (Oakton)
  157. Mississippi Kite Ictinia mississippiensis
    # Count: 1
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)

Hybrids (1)

  1. Golden-winged x Blue-winged Warbler (hybrid) Vermivora chrysoptera x cyanoptera
    # Count: 1
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)

Additional Taxa (33)

  1. blackbird sp. Icteridae sp.
    # Count: 25
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  2. crow sp. Corvus sp. (crow sp.)
    # Count: 200
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  3. Accipiter sp. Accipiter sp.
    # Count: 1
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  4. new world oriole sp. Icterus sp.
    # Count: 1
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  5. Leiothlypis sp. Leiothlypis sp.
    # Count: 1
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  6. Louisiana/Northern Waterthrush Parkesia motacilla/noveboracensis
    # Count: 1
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  7. woodpecker sp. Picidae sp.
    # Count: 3
    Date:
    Observer: Lynn Rafferty
    Location: Difficult Run Stream Valley Park (Oakton)
  8. nuthatch sp. Sitta sp.
    # Count: 1
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  9. vireo sp. Vireo sp.
    # Count: 2
    Date:
    Observer: Charlie Barnard Jr.
    Location: Difficult Run Stream Valley Park (Oakton)
  10. wren sp. Troglodytidae sp.
    # Count: 1
    Date:
    Observer: Charlie Barnard Jr.
    Location: Difficult Run Stream Valley Park (Oakton)
  11. duck sp. Anatidae (duck sp.)
    # Count: 5
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  12. Setophaga sp. Setophaga sp.
    # Count: 15
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  13. swallow sp. Hirundinidae sp.
    # Count: 2
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  14. new world sparrow sp. Passerellidae sp.
    # Count: 1
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  15. Downy/Hairy Woodpecker Dryobates pubescens/villosus
    # Count: 3
    Date:
    Observer: Carine Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  16. Carolina/Black-capped Chickadee Poecile carolinensis/atricapillus
    # Count: 1
    Date:
    Observer: Pete Huffer
    Location: Difficult Run Stream Valley Park (Oakton)
  17. passerine sp. Passeriformes sp.
    # Count: 50
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  18. Empidonax sp. Empidonax sp.
    # Count: 6
    Date:
    Observer: Pete Huffer
    Location: Difficult Run Stream Valley Park (Oakton)
  19. falcon sp. Falco sp.
    # Count: 1
    Date:
    Observer: Amiel Hopkins
    Location: Difficult Run Stream Valley Park (Oakton)
  20. new world warbler sp. Parulidae sp.
    # Count: 14
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  21. Bay-breasted/Blackpoll Warbler Setophaga castanea/striata
    # Count: 2
    Date:
    Observer: Frederick Atwood
    Location: Difficult Run Stream Valley Park (Oakton)
  22. Philadelphia/Warbling Vireo Vireo philadelphicus/gilvus
    # Count: 1
    Date:
    Observer: Amiel Hopkins
    Location: Difficult Run Stream Valley Park (Oakton)
  23. Yellow-billed/Black-billed Cuckoo Coccyzus americanus/erythropthalmus
    # Count: 1
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  24. House/Purple Finch Haemorhous mexicanus/purpureus
    # Count: 2
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  25. gull sp. Larinae sp.
    # Count: 1
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)
  26. Mallard/American Black Duck Anas platyrhynchos/rubripes
    # Count: 2
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  27. bird sp. Aves sp.
    # Count: 2
    Date:
    Observer: stephen johnson šŸ¦œ
    Location: Difficult Run Stream Valley Park (Oakton)
  28. Lesser/Greater Yellowlegs Tringa flavipes/melanoleuca
    # Count: 5
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  29. Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/traillii
    # Count: 1
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  30. Catharus sp. Catharus sp.
    # Count: 3
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  31. Buteo sp. Buteo sp.
    # Count: 1
    Date:
    Observer: Nick Newberry
    Location: Difficult Run Stream Valley Park (Oakton)
  32. hawk sp. Accipitridae sp. (hawk sp.)
    # Count: 1
    Date:
    Observer: Barbara Roberts
    Location: Difficult Run Stream Valley Park (Oakton)
  33. Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperii
    # Count: 1
    Date:
    Observer: Joshua Berman
    Location: Difficult Run Stream Valley Park (Oakton)