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Triadelphia Reservoir--Pigtail Branch

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Bird List

Updated ~19 seconds ago
218 All Years 90 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 (218)

  1. Canada Goose Branta canadensis
    # Count: 8
    Date:
    Observer: Kelly Shima
    Location: Triadelphia Reservoir--Pigtail Branch
  2. Mallard Anas platyrhynchos
    # Count: 1
    Date:
    Observer: Kelly Shima
    Location: Triadelphia Reservoir--Pigtail Branch
  3. Mourning Dove Zenaida macroura
    # Count: 5
    Date:
    Observer: Kelly Shima
    Location: Triadelphia Reservoir--Pigtail Branch
  4. Double-crested Cormorant Nannopterum auritum
    # Count: 2
    Date:
    Observer: Kelly Shima
    Location: Triadelphia Reservoir--Pigtail Branch
  5. Great Blue Heron Ardea herodias
    # Count: 1
    Date:
    Observer: Kelly Shima
    Location: Triadelphia Reservoir--Pigtail Branch
  6. Red-shouldered Hawk Buteo lineatus
    # Count: 1
    Date:
    Observer: Kelly Shima
    Location: Triadelphia Reservoir--Pigtail Branch
  7. Belted Kingfisher Megaceryle alcyon
    # Count: 2
    Date:
    Observer: Kelly Shima
    Location: Triadelphia Reservoir--Pigtail Branch
  8. Red-bellied Woodpecker Melanerpes carolinus
    # Count: 3
    Date:
    Observer: Kelly Shima
    Location: Triadelphia Reservoir--Pigtail Branch
  9. Downy Woodpecker Dryobates pubescens
    # Count: 1
    Date:
    Observer: Kelly Shima
    Location: Triadelphia Reservoir--Pigtail Branch
  10. Pileated Woodpecker Dryocopus pileatus
    # Count: 2
    Date:
    Observer: Kelly Shima
    Location: Triadelphia Reservoir--Pigtail Branch
  11. Northern Flicker Colaptes auratus
    # Count: 1
    Date:
    Observer: Kelly Shima
    Location: Triadelphia Reservoir--Pigtail Branch
  12. Eastern Kingbird Tyrannus tyrannus
    # Count: 3
    Date:
    Observer: Kelly Shima
    Location: Triadelphia Reservoir--Pigtail Branch
  13. Blue Jay Cyanocitta cristata
    # Count: 1
    Date:
    Observer: Kelly Shima
    Location: Triadelphia Reservoir--Pigtail Branch
  14. American Crow Corvus brachyrhynchos
    # Count: 2
    Date:
    Observer: Kelly Shima
    Location: Triadelphia Reservoir--Pigtail Branch
  15. Fish Crow Corvus ossifragus
    # Count: 3
    Date:
    Observer: Kelly Shima
    Location: Triadelphia Reservoir--Pigtail Branch
  16. Common Raven Corvus corax
    # Count: 1
    Date:
    Observer: Kelly Shima
    Location: Triadelphia Reservoir--Pigtail Branch
  17. Carolina Chickadee Poecile carolinensis
    # Count: 1
    Date:
    Observer: Kelly Shima
    Location: Triadelphia Reservoir--Pigtail Branch
  18. Tufted Titmouse Baeolophus bicolor
    # Count: 5
    Date:
    Observer: Kelly Shima
    Location: Triadelphia Reservoir--Pigtail Branch
  19. Tree Swallow Tachycineta bicolor
    # Count: 2
    Date:
    Observer: Kelly Shima
    Location: Triadelphia Reservoir--Pigtail Branch
  20. Barn Swallow Hirundo rustica
    # Count: 20
    Date:
    Observer: Kelly Shima
    Location: Triadelphia Reservoir--Pigtail Branch
  21. Blue-gray Gnatcatcher Polioptila caerulea
    # Count: 1
    Date:
    Observer: Kelly Shima
    Location: Triadelphia Reservoir--Pigtail Branch
  22. Carolina Wren Thryothorus ludovicianus
    # Count: 2
    Date:
    Observer: Kelly Shima
    Location: Triadelphia Reservoir--Pigtail Branch
  23. European Starling Sturnus vulgaris
    # Count: 1
    Date:
    Observer: Kelly Shima
    Location: Triadelphia Reservoir--Pigtail Branch
  24. Eastern Bluebird Sialia sialis
    # Count: 1
    Date:
    Observer: Kelly Shima
    Location: Triadelphia Reservoir--Pigtail Branch
  25. American Robin Turdus migratorius
    # Count: 2
    Date:
    Observer: Kelly Shima
    Location: Triadelphia Reservoir--Pigtail Branch
  26. American Goldfinch Spinus tristis
    # Count: 1
    Date:
    Observer: Kelly Shima
    Location: Triadelphia Reservoir--Pigtail Branch
  27. White-throated Sparrow Zonotrichia albicollis
    # Count: 3
    Date:
    Observer: Kelly Shima
    Location: Triadelphia Reservoir--Pigtail Branch
  28. Song Sparrow Melospiza melodia
    # Count: 2
    Date:
    Observer: Kelly Shima
    Location: Triadelphia Reservoir--Pigtail Branch
  29. Eastern Towhee Pipilo erythrophthalmus
    # Count: 1
    Date:
    Observer: Kelly Shima
    Location: Triadelphia Reservoir--Pigtail Branch
  30. Baltimore Oriole Icterus galbula
    # Count: 5
    Date:
    Observer: Kelly Shima
    Location: Triadelphia Reservoir--Pigtail Branch
  31. Red-winged Blackbird Agelaius phoeniceus
    # Count: 2
    Date:
    Observer: Kelly Shima
    Location: Triadelphia Reservoir--Pigtail Branch
  32. Brown-headed Cowbird Molothrus ater
    # Count: 1
    Date:
    Observer: Kelly Shima
    Location: Triadelphia Reservoir--Pigtail Branch
  33. Northern Parula Setophaga americana
    # Count: 1
    Date:
    Observer: Kelly Shima
    Location: Triadelphia Reservoir--Pigtail Branch
  34. Northern Cardinal Cardinalis cardinalis
    # Count: 1
    Date:
    Observer: Kelly Shima
    Location: Triadelphia Reservoir--Pigtail Branch
  35. Black Vulture Coragyps atratus
    # Count: 2
    Date:
    Observer: Warren Cummings
    Location: Triadelphia Reservoir--Pigtail Branch
  36. Turkey Vulture Cathartes aura
    # Count: 1
    Date:
    Observer: Warren Cummings
    Location: Triadelphia Reservoir--Pigtail Branch
  37. White-breasted Nuthatch Sitta carolinensis
    # Count: 1
    Date:
    Observer: Warren Cummings
    Location: Triadelphia Reservoir--Pigtail Branch
  38. Chipping Sparrow Spizella passerina
    # Count: 2
    Date:
    Observer: Warren Cummings
    Location: Triadelphia Reservoir--Pigtail Branch
  39. Common Yellowthroat Geothlypis trichas
    # Count: 2
    Date:
    Observer: Warren Cummings
    Location: Triadelphia Reservoir--Pigtail Branch
  40. Indigo Bunting Passerina cyanea
    # Count: 1
    Date:
    Observer: Warren Cummings
    Location: Triadelphia Reservoir--Pigtail Branch
  41. Eastern Phoebe Sayornis phoebe
    # Count: 1
    Date:
    Observer: David Sandler
    Location: Triadelphia Reservoir--Pigtail Branch
  42. Ruby-crowned Kinglet Corthylio calendula
    # Count: 2
    Date:
    Observer: David Sandler
    Location: Triadelphia Reservoir--Pigtail Branch
  43. Louisiana Waterthrush Parkesia motacilla
    # Count: 2
    Date:
    Observer: David Sandler
    Location: Triadelphia Reservoir--Pigtail Branch
  44. Red-tailed Hawk Buteo jamaicensis
    # Count: 1
    Date:
    Observer: Ashley Tipton
    Location: Triadelphia Reservoir--Pigtail Branch
  45. Hairy Woodpecker Dryobates villosus
    # Count: 1
    Date:
    Observer: Ashley Tipton
    Location: Triadelphia Reservoir--Pigtail Branch
  46. Pied-billed Grebe Podilymbus podiceps
    # Count: 1
    Date:
    Observer: John Blaisdell
    Location: Triadelphia Reservoir--Pigtail Branch
  47. Ring-billed Gull Larus delawarensis
    # Count: 2
    Date:
    Observer: John Blaisdell
    Location: Triadelphia Reservoir--Pigtail Branch
  48. Wood Duck Aix sponsa
    # Count: 2
    Date:
    Observer: Michael Kerwin
    Location: Triadelphia Reservoir--Pigtail Branch
  49. Common Loon Gavia immer
    # Count: 2
    Date:
    Observer: Michael Kerwin
    Location: Triadelphia Reservoir--Pigtail Branch
  50. Golden-crowned Kinglet Regulus satrapa
    # Count: 1
    Date:
    Observer: Michael Kerwin
    Location: Triadelphia Reservoir--Pigtail Branch
  51. Purple Finch Haemorhous purpureus
    # Count: 1
    Date:
    Observer: Michael Kerwin
    Location: Triadelphia Reservoir--Pigtail Branch
  52. Pine Warbler Setophaga pinus
    # Count: 1
    Date:
    Observer: Michael Kerwin
    Location: Triadelphia Reservoir--Pigtail Branch
  53. Northern Shoveler Spatula clypeata
    # Count: 1
    Date:
    Observer: Alex Pellegrini
    Location: Triadelphia Reservoir--Pigtail Branch
  54. Red-breasted Merganser Mergus serrator
    # Count: 10
    Date:
    Observer: Alex Pellegrini
    Location: Triadelphia Reservoir--Pigtail Branch
  55. Osprey Pandion haliaetus
    # Count: 1
    Date:
    Observer: Alex Pellegrini
    Location: Triadelphia Reservoir--Pigtail Branch
  56. Hermit Thrush Catharus guttatus
    # Count: 3
    Date:
    Observer: Alex Pellegrini
    Location: Triadelphia Reservoir--Pigtail Branch
  57. Field Sparrow Spizella pusilla
    # Count: 1
    Date:
    Observer: Alex Pellegrini
    Location: Triadelphia Reservoir--Pigtail Branch
  58. Swamp Sparrow Melospiza georgiana
    # Count: 5
    Date:
    Observer: Alex Pellegrini
    Location: Triadelphia Reservoir--Pigtail Branch
  59. Common Merganser Mergus merganser
    # Count: 2
    Date:
    Observer: Jayden Ward
    Location: Triadelphia Reservoir--Pigtail Branch
  60. Bald Eagle Haliaeetus leucocephalus
    # Count: 1
    Date:
    Observer: Jayden Ward
    Location: Triadelphia Reservoir--Pigtail Branch
  61. Yellow-bellied Sapsucker Sphyrapicus varius
    # Count: 1
    Date:
    Observer: Jayden Ward
    Location: Triadelphia Reservoir--Pigtail Branch
  62. Red-headed Woodpecker Melanerpes erythrocephalus
    # Count: 1
    Date:
    Observer: Jayden Ward
    Location: Triadelphia Reservoir--Pigtail Branch
  63. Northern Mockingbird Mimus polyglottos
    # Count: 1
    Date:
    Observer: Roshan Vignarajah
    Location: Triadelphia Reservoir--Pigtail Branch
  64. Bonaparte's Gull Chroicocephalus philadelphia
    # Count: 1
    Date:
    Observer: Ryan Salsman
    Location: Triadelphia Reservoir--Pigtail Branch
  65. Dark-eyed Junco Junco hyemalis
    # Count: 9
    Date:
    Observer: Ryan Salsman
    Location: Triadelphia Reservoir--Pigtail Branch
  66. Winter Wren Troglodytes hiemalis
    # Count: 1
    Date:
    Observer: Lauren Crocker
    Location: Triadelphia Reservoir--Pigtail Branch
  67. Cooper's Hawk Accipiter cooperii
    # Count: 1
    Date:
    Observer: Margaret Harris
    Location: Triadelphia Reservoir--Pigtail Branch
  68. Green-winged Teal Anas crecca
    # Count: 4
    Date:
    Observer: Gregg Petersen
    Location: Triadelphia Reservoir--Pigtail Branch
  69. Greater Scaup Aythya marila
    # Count: 1
    Date:
    Observer: Gregg Petersen
    Location: Triadelphia Reservoir--Pigtail Branch
  70. Hooded Merganser Lophodytes cucullatus
    # Count: 1
    Date:
    Observer: Gregg Petersen
    Location: Triadelphia Reservoir--Pigtail Branch
  71. Wild Turkey Meleagris gallopavo
    # Count: 2
    Date:
    Observer: Gregg Petersen
    Location: Triadelphia Reservoir--Pigtail Branch
  72. Brown Creeper Certhia americana
    # Count: 1
    Date:
    Observer: Gregg Petersen
    Location: Triadelphia Reservoir--Pigtail Branch
  73. Caspian Tern Hydroprogne caspia
    # Count: 2
    Date:
    Observer: Michael Kerwin
    Location: Triadelphia Reservoir--Pigtail Branch
  74. Sharp-shinned Hawk Accipiter striatus
    # Count: 1
    Date:
    Observer: Russ Ruffing
    Location: Triadelphia Reservoir--Pigtail Branch
  75. Yellow-rumped Warbler Setophaga coronata
    # Count: 1
    Date:
    Observer: John Harris
    Location: Triadelphia Reservoir--Pigtail Branch
  76. Killdeer Charadrius vociferus
    # Count: 1
    Date:
    Observer: Gregg Petersen
    Location: Triadelphia Reservoir--Pigtail Branch
  77. Gray Catbird Dumetella carolinensis
    # Count: 1
    Date:
    Observer: Joshua Ward
    Location: Triadelphia Reservoir--Pigtail Branch
  78. Tundra Swan Cygnus columbianus
    # Count: 5
    Date:
    Observer: Joe Hanfman
    Location: Triadelphia Reservoir--Pigtail Branch
  79. Gadwall Mareca strepera
    # Count: 3
    Date:
    Observer: Gregg Petersen
    Location: Triadelphia Reservoir--Pigtail Branch
  80. Lesser Scaup Aythya affinis
    # Count: 10
    Date:
    Observer: Gregg Petersen
    Location: Triadelphia Reservoir--Pigtail Branch
  81. Ruddy Duck Oxyura jamaicensis
    # Count: 8
    Date:
    Observer: Gregg Petersen
    Location: Triadelphia Reservoir--Pigtail Branch
  82. Fox Sparrow Passerella iliaca
    # Count: 1
    Date:
    Observer: Gregg Petersen
    Location: Triadelphia Reservoir--Pigtail Branch
  83. Ring-necked Duck Aythya collaris
    # Count: 3
    Date:
    Observer: Joe Hanfman
    Location: Triadelphia Reservoir--Pigtail Branch
  84. American Wigeon Mareca americana
    # Count: 5
    Date:
    Observer: Joshua Gild
    Location: Triadelphia Reservoir--Pigtail Branch
  85. House Sparrow Passer domesticus
    # Count: 1
    Date:
    Observer: Joshua Gild
    Location: Triadelphia Reservoir--Pigtail Branch
  86. American Black Duck Anas rubripes
    # Count: 28
    Date:
    Observer: Russell Kovach
    Location: Triadelphia Reservoir--Pigtail Branch
  87. Canvasback Aythya valisineria
    # Count: 4
    Date:
    Observer: Russell Kovach
    Location: Triadelphia Reservoir--Pigtail Branch
  88. Redhead Aythya americana
    # Count: 8
    Date:
    Observer: Russell Kovach
    Location: Triadelphia Reservoir--Pigtail Branch
  89. American Coot Fulica americana
    # Count: 1
    Date:
    Observer: Russell Kovach
    Location: Triadelphia Reservoir--Pigtail Branch
  90. House Finch Haemorhous mexicanus
    # Count: 1
    Date:
    Observer: Wen Shyong
    Location: Triadelphia Reservoir--Pigtail Branch
  91. Cackling Goose Branta hutchinsii
    # Count: 2
    Date:
    Observer: Joe Hanfman
    Location: Triadelphia Reservoir--Pigtail Branch
  92. Northern Pintail Anas acuta
    # Count: 2
    Date:
    Observer: Joe Hanfman
    Location: Triadelphia Reservoir--Pigtail Branch
  93. Great Horned Owl Bubo virginianus
    # Count: 1
    Date:
    Observer: Joe Hanfman
    Location: Triadelphia Reservoir--Pigtail Branch
  94. Bufflehead Bucephala albeola
    # Count: 5
    Date:
    Observer: Joe Hanfman
    Location: Triadelphia Reservoir--Pigtail Branch
  95. Peregrine Falcon Falco peregrinus
    # Count: 1
    Date:
    Observer: Gregg Petersen
    Location: Triadelphia Reservoir--Pigtail Branch
  96. Dunlin Calidris alpina
    # Count: 1
    Date:
    Observer: Jeff Culler
    Location: Triadelphia Reservoir--Pigtail Branch
  97. Northern Harrier Circus hudsonius
    # Count: 1
    Date:
    Observer: Jeff Culler
    Location: Triadelphia Reservoir--Pigtail Branch
  98. Cedar Waxwing Bombycilla cedrorum
    # Count: 2
    Date:
    Observer: Joe Hanfman
    Location: Triadelphia Reservoir--Pigtail Branch
  99. American Pipit Anthus rubescens
    # Count: 20
    Date:
    Observer: Joe Hanfman
    Location: Triadelphia Reservoir--Pigtail Branch
  100. Snow Goose Anser caerulescens
    # Count: 1
    Date:
    Observer: Joe Hanfman
    Location: Triadelphia Reservoir--Pigtail Branch
  101. Savannah Sparrow Passerculus sandwichensis
    # Count: 1
    Date:
    Observer: Joe Hanfman
    Location: Triadelphia Reservoir--Pigtail Branch
  102. Red-breasted Nuthatch Sitta canadensis
    # Count: 1
    Date:
    Observer: Joe Hanfman
    Location: Triadelphia Reservoir--Pigtail Branch
  103. Pine Siskin Spinus pinus
    # Count: 1
    Date:
    Observer: Joe Hanfman
    Location: Triadelphia Reservoir--Pigtail Branch
  104. Brown Thrasher Toxostoma rufum
    # Count: 1
    Date:
    Observer: Joe Hanfman
    Location: Triadelphia Reservoir--Pigtail Branch
  105. Palm Warbler Setophaga palmarum
    # Count: 1
    Date:
    Observer: Steve Luke
    Location: Triadelphia Reservoir--Pigtail Branch
  106. White-rumped Sandpiper Calidris fuscicollis
    # Count: 1
    Date:
    Observer: Ryan Salsman
    Location: Triadelphia Reservoir--Pigtail Branch
  107. Merlin Falco columbarius
    # Count: 1
    Date:
    Observer: Margaret Harris
    Location: Triadelphia Reservoir--Pigtail Branch
  108. Pectoral Sandpiper Calidris melanotos
    # Count: 2
    Date:
    Observer: Kurt Schwarz
    Location: Triadelphia Reservoir--Pigtail Branch
  109. Black-legged Kittiwake Rissa tridactyla
    # Count: 1
    Date:
    Observer: John Harris
    Location: Triadelphia Reservoir--Pigtail Branch
  110. Horned Grebe Podiceps auritus
    # Count: 2
    Date:
    Observer: Joe Hanfman
    Location: Triadelphia Reservoir--Pigtail Branch
  111. Greater Yellowlegs Tringa melanoleuca
    # Count: 1
    Date:
    Observer: Joe Hanfman
    Location: Triadelphia Reservoir--Pigtail Branch
  112. Horned Lark Eremophila alpestris
    # Count: 1
    Date:
    Observer: Joe Hanfman
    Location: Triadelphia Reservoir--Pigtail Branch
  113. Lincoln's Sparrow Melospiza lincolnii
    # Count: 1
    Date:
    Observer: Joe Hanfman
    Location: Triadelphia Reservoir--Pigtail Branch
  114. American Kestrel Falco sparverius
    # Count: 1
    Date:
    Observer: Joe Hanfman
    Location: Triadelphia Reservoir--Pigtail Branch
  115. Black-throated Blue Warbler Setophaga caerulescens
    # Count: 1
    Date:
    Observer: Joshua Ward
    Location: Triadelphia Reservoir--Pigtail Branch
  116. Semipalmated Sandpiper Calidris pusilla
    # Count: 6
    Date:
    Observer: Joshua Ward
    Location: Triadelphia Reservoir--Pigtail Branch
  117. Swainson's Thrush Catharus ustulatus
    # Count: 3
    Date:
    Observer: Kurt Schwarz
    Location: Triadelphia Reservoir--Pigtail Branch
  118. Red-eyed Vireo Vireo olivaceus
    # Count: 2
    Date:
    Observer: Joshua Ward
    Location: Triadelphia Reservoir--Pigtail Branch
  119. House Wren Troglodytes aedon
    # Count: 2
    Date:
    Observer: Joshua Ward
    Location: Triadelphia Reservoir--Pigtail Branch
  120. Black-and-white Warbler Mniotilta varia
    # Count: 2
    Date:
    Observer: Joshua Ward
    Location: Triadelphia Reservoir--Pigtail Branch
  121. Tennessee Warbler Leiothlypis peregrina
    # Count: 1
    Date:
    Observer: Joshua Ward
    Location: Triadelphia Reservoir--Pigtail Branch
  122. Magnolia Warbler Setophaga magnolia
    # Count: 5
    Date:
    Observer: Joshua Ward
    Location: Triadelphia Reservoir--Pigtail Branch
  123. Black-throated Green Warbler Setophaga virens
    # Count: 3
    Date:
    Observer: Joshua Ward
    Location: Triadelphia Reservoir--Pigtail Branch
  124. Scarlet Tanager Piranga olivacea
    # Count: 1
    Date:
    Observer: Joshua Ward
    Location: Triadelphia Reservoir--Pigtail Branch
  125. Rose-breasted Grosbeak Pheucticus ludovicianus
    # Count: 1
    Date:
    Observer: Joshua Ward
    Location: Triadelphia Reservoir--Pigtail Branch
  126. Great Egret Ardea alba
    # Count: 4
    Date:
    Observer: Kurt Schwarz
    Location: Triadelphia Reservoir--Pigtail Branch
  127. Marsh Wren Cistothorus palustris
    # Count: 1
    Date:
    Observer: Kurt Schwarz
    Location: Triadelphia Reservoir--Pigtail Branch
  128. Chimney Swift Chaetura pelagica
    # Count: 9
    Date:
    Observer: Joshua Ward
    Location: Triadelphia Reservoir--Pigtail Branch
  129. Ruby-throated Hummingbird Archilochus colubris
    # Count: 1
    Date:
    Observer: Joshua Ward
    Location: Triadelphia Reservoir--Pigtail Branch
  130. Yellow-throated Vireo Vireo flavifrons
    # Count: 1
    Date:
    Observer: Joshua Ward
    Location: Triadelphia Reservoir--Pigtail Branch
  131. Wood Thrush Hylocichla mustelina
    # Count: 2
    Date:
    Observer: Joshua Ward
    Location: Triadelphia Reservoir--Pigtail Branch
  132. American Redstart Setophaga ruticilla
    # Count: 1
    Date:
    Observer: Joshua Ward
    Location: Triadelphia Reservoir--Pigtail Branch
  133. Broad-winged Hawk Buteo platypterus
    # Count: 2
    Date:
    Observer: Joshua Ward
    Location: Triadelphia Reservoir--Pigtail Branch
  134. Gray-cheeked Thrush Catharus minimus
    # Count: 1
    Date:
    Observer: Joshua Ward
    Location: Triadelphia Reservoir--Pigtail Branch
  135. Blackpoll Warbler Setophaga striata
    # Count: 1
    Date:
    Observer: Joshua Ward
    Location: Triadelphia Reservoir--Pigtail Branch
  136. Lesser Yellowlegs Tringa flavipes
    # Count: 1
    Date:
    Observer: Daniel S.
    Location: Triadelphia Reservoir--Pigtail Branch
  137. Eastern Wood-Pewee Contopus virens
    # Count: 1
    Date:
    Observer: Daniel S.
    Location: Triadelphia Reservoir--Pigtail Branch
  138. Chestnut-sided Warbler Setophaga pensylvanica
    # Count: 1
    Date:
    Observer: Daniel S.
    Location: Triadelphia Reservoir--Pigtail Branch
  139. Spotted Sandpiper Actitis macularius
    # Count: 2
    Date:
    Observer: Wen Shyong
    Location: Triadelphia Reservoir--Pigtail Branch
  140. American Golden-Plover Pluvialis dominica
    # Count: 1
    Date:
    Observer: Joshua Ward
    Location: Triadelphia Reservoir--Pigtail Branch
  141. Semipalmated Plover Charadrius semipalmatus
    # Count: 2
    Date:
    Observer: Joshua Ward
    Location: Triadelphia Reservoir--Pigtail Branch
  142. Canada Warbler Cardellina canadensis
    # Count: 1
    Date:
    Observer: Joshua Ward
    Location: Triadelphia Reservoir--Pigtail Branch
  143. Solitary Sandpiper Tringa solitaria
    # Count: 1
    Date:
    Observer: Kevin Ebert
    Location: Triadelphia Reservoir--Pigtail Branch
  144. Least Sandpiper Calidris minutilla
    # Count: 15
    Date:
    Observer: Kevin Ebert
    Location: Triadelphia Reservoir--Pigtail Branch
  145. Black-bellied Plover Pluvialis squatarola
    # Count: 4
    Date:
    Observer: Michael Kerwin
    Location: Triadelphia Reservoir--Pigtail Branch
  146. Veery Catharus fuscescens
    # Count: 1
    Date:
    Observer: Russ Ruffing
    Location: Triadelphia Reservoir--Pigtail Branch
  147. Sanderling Calidris alba
    # Count: 1
    Date:
    Observer: Russ Ruffing
    Location: Triadelphia Reservoir--Pigtail Branch
  148. Baird's Sandpiper Calidris bairdii
    # Count: 1
    Date:
    Observer: Russ Ruffing
    Location: Triadelphia Reservoir--Pigtail Branch
  149. Stilt Sandpiper Calidris himantopus
    # Count: 3
    Date:
    Observer: Dave Ziolkowski Jr
    Location: Triadelphia Reservoir--Pigtail Branch
  150. Purple Martin Progne subis
    # Count: 1
    Date:
    Observer: Dave Ziolkowski Jr
    Location: Triadelphia Reservoir--Pigtail Branch
  151. Bay-breasted Warbler Setophaga castanea
    # Count: 1
    Date:
    Observer: Joshua Ward
    Location: Triadelphia Reservoir--Pigtail Branch
  152. Blue-headed Vireo Vireo solitarius
    # Count: 1
    Date:
    Observer: Russell Kovach
    Location: Triadelphia Reservoir--Pigtail Branch
  153. Northern Rough-winged Swallow Stelgidopteryx serripennis
    # Count: 2
    Date:
    Observer: Russell Kovach
    Location: Triadelphia Reservoir--Pigtail Branch
  154. Cape May Warbler Setophaga tigrina
    # Count: 1
    Date:
    Observer: Valerie Swan
    Location: Triadelphia Reservoir--Pigtail Branch
  155. Connecticut Warbler Oporornis agilis
    # Count: 1
    Date:
    Observer: Ryan Salsman
    Location: Triadelphia Reservoir--Pigtail Branch
  156. Blackburnian Warbler Setophaga fusca
    # Count: 1
    Date:
    Observer: Ryan Salsman
    Location: Triadelphia Reservoir--Pigtail Branch
  157. Common Nighthawk Chordeiles minor
    # Count: 10
    Date:
    Observer: Allen Burke
    Location: Triadelphia Reservoir--Pigtail Branch
  158. Blue-winged Teal Spatula discors
    # Count: 3
    Date:
    Observer: Alex Pellegrini
    Location: Triadelphia Reservoir--Pigtail Branch
  159. Cliff Swallow Petrochelidon pyrrhonota
    # Count: 10
    Date:
    Observer: Wen Shyong
    Location: Triadelphia Reservoir--Pigtail Branch
  160. Great Crested Flycatcher Myiarchus crinitus
    # Count: 1
    Date:
    Observer: Steve Luke
    Location: Triadelphia Reservoir--Pigtail Branch
  161. Black-billed Cuckoo Coccyzus erythropthalmus
    # Count: 1
    Date:
    Observer: Kurt Schwarz
    Location: Triadelphia Reservoir--Pigtail Branch
  162. Yellow-billed Cuckoo Coccyzus americanus
    # Count: 2
    Date:
    Observer: Gregg Petersen
    Location: Triadelphia Reservoir--Pigtail Branch
  163. Ovenbird Seiurus aurocapilla
    # Count: 1
    Date:
    Observer: Gregg Petersen
    Location: Triadelphia Reservoir--Pigtail Branch
  164. Northern Waterthrush Parkesia noveboracensis
    # Count: 1
    Date:
    Observer: Joshua Ward
    Location: Triadelphia Reservoir--Pigtail Branch
  165. Acadian Flycatcher Empidonax virescens
    # Count: 1
    Date:
    Observer: Michael Kerwin
    Location: Triadelphia Reservoir--Pigtail Branch
  166. Green Heron Butorides virescens
    # Count: 1
    Date:
    Observer: Michael Kerwin
    Location: Triadelphia Reservoir--Pigtail Branch
  167. Kentucky Warbler Geothlypis formosa
    # Count: 1
    Date:
    Observer: Michael Kerwin
    Location: Triadelphia Reservoir--Pigtail Branch
  168. Barred Owl Strix varia
    # Count: 1
    Date:
    Observer: Warren Cummings
    Location: Triadelphia Reservoir--Pigtail Branch
  169. Warbling Vireo Vireo gilvus
    # Count: 1
    Date:
    Observer: Margaret Harris
    Location: Triadelphia Reservoir--Pigtail Branch
  170. Orchard Oriole Icterus spurius
    # Count: 1
    Date:
    Observer: Margaret Harris
    Location: Triadelphia Reservoir--Pigtail Branch
  171. Common Grackle Quiscalus quiscula
    # Count: 2
    Date:
    Observer: Kurt Schwarz
    Location: Triadelphia Reservoir--Pigtail Branch
  172. Hooded Warbler Setophaga citrina
    # Count: 1
    Date:
    Observer: Kurt Schwarz
    Location: Triadelphia Reservoir--Pigtail Branch
  173. Worm-eating Warbler Helmitheros vermivorum
    # Count: 1
    Date:
    Observer: Russ Ruffing
    Location: Triadelphia Reservoir--Pigtail Branch
  174. White-eyed Vireo Vireo griseus
    # Count: 1
    Date:
    Observer: Dimitrios Marmaras
    Location: Triadelphia Reservoir--Pigtail Branch
  175. Bank Swallow Riparia riparia
    # Count: 4
    Date:
    Observer: Dimitrios Marmaras
    Location: Triadelphia Reservoir--Pigtail Branch
  176. Yellow Warbler Setophaga petechia
    # Count: 1
    Date:
    Observer: Dimitrios Marmaras
    Location: Triadelphia Reservoir--Pigtail Branch
  177. Rock Pigeon Columba livia
    # Count: 1
    Date:
    Observer: Marc Young
    Location: Triadelphia Reservoir--Pigtail Branch
  178. Eastern Screech-Owl Megascops asio
    # Count: 1
    Date:
    Observer: Michael Kerwin
    Location: Triadelphia Reservoir--Pigtail Branch
  179. Blue-winged Warbler Vermivora cyanoptera
    # Count: 1
    Date:
    Observer: Michael Kerwin
    Location: Triadelphia Reservoir--Pigtail Branch
  180. Yellow-breasted Chat Icteria virens
    # Count: 1
    Date:
    Observer: Michael Kerwin
    Location: Triadelphia Reservoir--Pigtail Branch
  181. Alder Flycatcher Empidonax alnorum
    # Count: 1
    Date:
    Observer: Michael Kerwin
    Location: Triadelphia Reservoir--Pigtail Branch
  182. Prothonotary Warbler Protonotaria citrea
    # Count: 1
    Date:
    Observer: Catherine Hallam
    Location: Triadelphia Reservoir--Pigtail Branch
  183. Eastern Meadowlark Sturnella magna
    # Count: 1
    Date:
    Observer: Michael Kerwin
    Location: Triadelphia Reservoir--Pigtail Branch
  184. Willow Flycatcher Empidonax traillii
    # Count: 1
    Date:
    Observer: Michael Kerwin
    Location: Triadelphia Reservoir--Pigtail Branch
  185. American Woodcock Scolopax minor
    # Count: 1
    Date:
    Observer: Michael Kerwin
    Location: Triadelphia Reservoir--Pigtail Branch
  186. Yellow-throated Warbler Setophaga dominica
    # Count: 1
    Date:
    Observer: Michael Kerwin
    Location: Triadelphia Reservoir--Pigtail Branch
  187. Rusty Blackbird Euphagus carolinus
    # Count: 2
    Date:
    Observer: Michael Kerwin
    Location: Triadelphia Reservoir--Pigtail Branch
  188. Wilson's Snipe Gallinago delicata
    # Count: 1
    Date:
    Observer: Michael Kerwin
    Location: Triadelphia Reservoir--Pigtail Branch
  189. Common Goldeneye Bucephala clangula
    # Count: 1
    Date:
    Observer: Valerie Swan
    Location: Triadelphia Reservoir--Pigtail Branch
  190. Least Flycatcher Empidonax minimus
    # Count: 1
    Date:
    Observer: Joshua Ward
    Location: Triadelphia Reservoir--Pigtail Branch
  191. Red-throated Loon Gavia stellata
    # Count: 1
    Date:
    Observer: John Harris
    Location: Triadelphia Reservoir--Pigtail Branch
  192. Sandhill Crane Antigone canadensis
    # Count: 5
    Date:
    Observer: Warren Cummings
    Location: Triadelphia Reservoir--Pigtail Branch
  193. Red-necked Grebe Podiceps grisegena
    # Count: 2
    Date:
    Observer: Jeff Culler
    Location: Triadelphia Reservoir--Pigtail Branch
  194. Nashville Warbler Leiothlypis ruficapilla
    # Count: 2
    Date:
    Observer: Jeff Culler
    Location: Triadelphia Reservoir--Pigtail Branch
  195. Bobolink Dolichonyx oryzivorus
    # Count: 2
    Date:
    Observer: Joe Hanfman
    Location: Triadelphia Reservoir--Pigtail Branch
  196. Virginia Rail Rallus limicola
    # Count: 1
    Date:
    Observer: Joshua Ward
    Location: Triadelphia Reservoir--Pigtail Branch
  197. Prairie Warbler Setophaga discolor
    # Count: 1
    Date:
    Observer: Paul Zucker
    Location: Triadelphia Reservoir--Pigtail Branch
  198. Sabine's Gull Xema sabini
    # Count: 1
    Date:
    Observer: Harry Fink
    Location: Triadelphia Reservoir--Pigtail Branch
  199. American Avocet Recurvirostra americana
    # Count: 1
    Date:
    Observer: Chuck Stirrat
    Location: Triadelphia Reservoir--Pigtail Branch
  200. Black-crowned Night Heron Nycticorax nycticorax
    # Count: 1
    Date:
    Observer: Howard Patterson
    Location: Triadelphia Reservoir--Pigtail Branch
  201. White-crowned Sparrow Zonotrichia leucophrys
    # Count: 1
    Date:
    Observer: Michael Bowen
    Location: Triadelphia Reservoir--Pigtail Branch
  202. Herring Gull Larus argentatus
    # Count: 9
    Date:
    Observer: Joe Hanfman
    Location: Triadelphia Reservoir--Pigtail Branch
  203. Forster's Tern Sterna forsteri
    # Count: 4
    Date:
    Observer: Nancy Magnusson
    Location: Triadelphia Reservoir--Pigtail Branch
  204. Ruddy Turnstone Arenaria interpres
    # Count: 1
    Date:
    Observer: Joe Hanfman
    Location: Triadelphia Reservoir--Pigtail Branch
  205. White-winged Scoter Melanitta deglandi
    # Count: 1
    Date:
    Observer: Chuck Stirrat
    Location: Triadelphia Reservoir--Pigtail Branch
  206. Long-tailed Duck Clangula hyemalis
    # Count: 2
    Date:
    Observer: Chuck Stirrat
    Location: Triadelphia Reservoir--Pigtail Branch
  207. Wilson's Warbler Cardellina pusilla
    # Count: 1
    Date:
    Observer: Howard County Records (J Hanfman)
    Location: Triadelphia Reservoir--Pigtail Branch
  208. Great Black-backed Gull Larus marinus
    # Count: 1
    Date:
    Observer: Howard County Records (J Hanfman)
    Location: Triadelphia Reservoir--Pigtail Branch
  209. Cerulean Warbler Setophaga cerulea
    # Count: 1
    Date:
    Observer: Scott Atkinson
    Location: Triadelphia Reservoir--Pigtail Branch
  210. Laughing Gull Leucophaeus atricilla
    # Count: 9
    Date:
    Observer: Nancy Magnusson
    Location: Triadelphia Reservoir--Pigtail Branch
  211. Black Tern Chlidonias niger
    # Count: 1
    Date:
    Observer: Nancy Magnusson
    Location: Triadelphia Reservoir--Pigtail Branch
  212. Philadelphia Vireo Vireo philadelphicus
    # Count: 1
    Date:
    Observer: Scott Atkinson
    Location: Triadelphia Reservoir--Pigtail Branch
  213. Golden-winged Warbler Vermivora chrysoptera
    # Count: 1
    Date:
    Observer: Nancy Magnusson
    Location: Triadelphia Reservoir--Pigtail Branch
  214. Short-billed Dowitcher Limnodromus griseus
    # Count: 1
    Date:
    Observer: Nancy Magnusson
    Location: Triadelphia Reservoir--Pigtail Branch
  215. Snowy Egret Egretta thula
    # Count: 1
    Date:
    Observer: Nancy Magnusson
    Location: Triadelphia Reservoir--Pigtail Branch
  216. Red Knot Calidris canutus
    # Count: 1
    Date:
    Observer: MD Historical Data
    Location: Triadelphia Reservoir--Pigtail Branch
  217. Little Blue Heron Egretta caerulea
    # Count: 1
    Date:
    Observer: Howard County Records (J Hanfman)
    Location: Triadelphia Reservoir--Pigtail Branch
  218. Piping Plover Charadrius melodus
    # Count: 1
    Date:
    Observer: MD Historical Data
    Location: Triadelphia Reservoir--Pigtail Branch

Hybrids (1)

  1. Lawrence's Warbler (hybrid) Vermivora chrysoptera x cyanoptera (F2 backcross)
    # Count: 1
    Date:
    Observer: Bob Ringler
    Location: Triadelphia Reservoir--Pigtail Branch

Additional Taxa (22)

  1. owl sp. Strigiformes sp.
    # Count: 1
    Date:
    Observer: Alex Pellegrini
    Location: Triadelphia Reservoir--Pigtail Branch
  2. duck sp. Anatidae (duck sp.)
    # Count: 11
    Date:
    Observer: Jayden Ward
    Location: Triadelphia Reservoir--Pigtail Branch
  3. swan sp. Cygnus sp.
    # Count: 1
    Date:
    Observer: Kurt Schwarz
    Location: Triadelphia Reservoir--Pigtail Branch
  4. American/Fish Crow Corvus brachyrhynchos/ossifragus
    # Count: 50
    Date:
    Observer: Joe Hanfman
    Location: Triadelphia Reservoir--Pigtail Branch
  5. shorebird sp. Charadriiformes sp.
    # Count: 35
    Date:
    Observer: Thomas Seivert
    Location: Triadelphia Reservoir--Pigtail Branch
  6. new world warbler sp. Parulidae sp.
    # Count: 3
    Date:
    Observer: Joshua Ward
    Location: Triadelphia Reservoir--Pigtail Branch
  7. Gray-cheeked/Bicknell's Thrush Catharus minimus/bicknelli
    # Count: 1
    Date:
    Observer: Joshua Ward
    Location: Triadelphia Reservoir--Pigtail Branch
  8. Bay-breasted/Blackpoll Warbler Setophaga castanea/striata
    # Count: 1
    Date:
    Observer: Joshua Ward
    Location: Triadelphia Reservoir--Pigtail Branch
  9. vireo sp. Vireo sp.
    # Count: 2
    Date:
    Observer: Russell Kovach
    Location: Triadelphia Reservoir--Pigtail Branch
  10. peep sp. Calidris sp. (peep sp.)
    # Count: 20
    Date:
    Observer: Steve Luke
    Location: Triadelphia Reservoir--Pigtail Branch
  11. dabbling duck sp. Anatidae sp. (dabbling duck sp.)
    # Count: 6
    Date:
    Observer: Gregg Petersen
    Location: Triadelphia Reservoir--Pigtail Branch
  12. swallow sp. Hirundinidae sp.
    # Count: 45
    Date:
    Observer: Gregg Petersen
    Location: Triadelphia Reservoir--Pigtail Branch
  13. Lesser/Greater Yellowlegs Tringa flavipes/melanoleuca
    # Count: 1
    Date:
    Observer: Steve Luke
    Location: Triadelphia Reservoir--Pigtail Branch
  14. Surf/Black Scoter Melanitta perspicillata/americana
    # Count: 1
    Date:
    Observer: Dimitrios Marmaras
    Location: Triadelphia Reservoir--Pigtail Branch
  15. new world flycatcher sp. Tyrannidae sp.
    # Count: 1
    Date:
    Observer: Benjamin Costello
    Location: Triadelphia Reservoir--Pigtail Branch
  16. gull sp. Larinae sp.
    # Count: X
    Date:
    Observer: Chuck Stirrat
    Location: Triadelphia Reservoir--Pigtail Branch
  17. hawk sp. Accipitridae sp. (hawk sp.)
    # Count: 1
    Date:
    Observer: Catherine Hallam
    Location: Triadelphia Reservoir--Pigtail Branch
  18. crow sp. Corvus sp. (crow sp.)
    # Count: 2
    Date:
    Observer: Michael Kerwin
    Location: Triadelphia Reservoir--Pigtail Branch
  19. Empidonax sp. Empidonax sp.
    # Count: 1
    Date:
    Observer: Allen Lewis
    Location: Triadelphia Reservoir--Pigtail Branch
  20. Buteo sp. Buteo sp.
    # Count: 1
    Date:
    Observer: Ron Gutberlet
    Location: Triadelphia Reservoir--Pigtail Branch
  21. Greater/Lesser Scaup Aythya marila/affinis
    # Count: X
    Date:
    Observer: kye jenkins
    Location: Triadelphia Reservoir--Pigtail Branch
  22. Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/traillii
    # Count: X
    Date:
    Observer: Scott Atkinson
    Location: Triadelphia Reservoir--Pigtail Branch