Menu
The Cornell Lab
The Cornell Lab

The Cornell Lab of Ornithology builds the eBird global platform for communities and partners around the world to advance data-driven science, education, and conservation.

Change Region

Change Region

Mercer

Map

Explore...

Bird List

Updated ~2 days ago
300 All Years 186 This Year 2024 156 This Month May 2024
Last Observed First Observed High Count

Custom Time Period

Change Time Period

Sort by

  1. Species Name
    Count
    Date
    Observer
    Location

Native and Naturalized (300)

  1. Yellow-rumped Warbler Setophaga coronata
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: Hamilton Square Park and Personal Location
  2. Mourning Dove Zenaida macroura
    # Count: 2
    Date:
    Observer: Ivy Babson
    Location: Mercer County Park
  3. Bald Eagle Haliaeetus leucocephalus
    # Count: 1
    Date:
    Observer: Ivy Babson
    Location: Mercer County Park
  4. Red-bellied Woodpecker Melanerpes carolinus
    # Count: 2
    Date:
    Observer: Ivy Babson
    Location: Mercer County Park
  5. Hairy Woodpecker Dryobates villosus
    # Count: 1
    Date:
    Observer: Ivy Babson
    Location: Mercer County Park
  6. Great Crested Flycatcher Myiarchus crinitus
    # Count: 2
    Date:
    Observer: Ivy Babson
    Location: Mercer County Park
  7. Blue Jay Cyanocitta cristata
    # Count: 1
    Date:
    Observer: Ivy Babson
    Location: Mercer County Park
  8. Tufted Titmouse Baeolophus bicolor
    # Count: 1
    Date:
    Observer: Ivy Babson
    Location: Mercer County Park
  9. White-breasted Nuthatch Sitta carolinensis
    # Count: 1
    Date:
    Observer: Ivy Babson
    Location: Mercer County Park
  10. Eastern Bluebird Sialia sialis
    # Count: 1
    Date:
    Observer: Ivy Babson
    Location: Mercer County Park
  11. American Robin Turdus migratorius
    # Count: 2
    Date:
    Observer: Ivy Babson
    Location: Mercer County Park
  12. White-throated Sparrow Zonotrichia albicollis
    # Count: 4
    Date:
    Observer: Ivy Babson
    Location: Mercer County Park
  13. Red-winged Blackbird Agelaius phoeniceus
    # Count: 2
    Date:
    Observer: Ivy Babson
    Location: Mercer County Park
  14. Northern Cardinal Cardinalis cardinalis
    # Count: 4
    Date:
    Observer: Ivy Babson
    Location: Mercer County Park
  15. Carolina Wren Thryothorus ludovicianus
    # Count: 1
    Date:
    Observer: Kevin Gong
    Location: 2580 Pennington Rd, Pennington US-NJ (40.3099,-74.7866)
  16. European Starling Sturnus vulgaris
    # Count: 4
    Date:
    Observer: Kevin Gong
    Location: 2580 Pennington Rd, Pennington US-NJ (40.3099,-74.7866)
  17. House Sparrow Passer domesticus
    # Count: 2
    Date:
    Observer: Kevin Gong
    Location: 2580 Pennington Rd, Pennington US-NJ (40.3099,-74.7866)
  18. Song Sparrow Melospiza melodia
    # Count: 1
    Date:
    Observer: Kevin Gong
    Location: 2580 Pennington Rd, Pennington US-NJ (40.3099,-74.7866)
  19. Canada Goose Branta canadensis
    # Count: 12
    Date:
    Observer: Jessica Howland
    Location: Mercer Corporate Park, Robbinsville
  20. Great Blue Heron Ardea herodias
    # Count: 1
    Date:
    Observer: Jessica Howland
    Location: Mercer Corporate Park, Robbinsville
  21. Turkey Vulture Cathartes aura
    # Count: 1
    Date:
    Observer: Jessica Howland
    Location: Mercer Corporate Park, Robbinsville
  22. Downy Woodpecker Dryobates pubescens
    # Count: 1
    Date:
    Observer: Jessica Howland
    Location: Mercer Corporate Park, Robbinsville
  23. Northern Flicker Colaptes auratus
    # Count: 1
    Date:
    Observer: Jessica Howland
    Location: Mercer Corporate Park, Robbinsville
  24. Tree Swallow Tachycineta bicolor
    # Count: 1
    Date:
    Observer: Jessica Howland
    Location: Mercer Corporate Park, Robbinsville
  25. House Wren Troglodytes aedon
    # Count: 1
    Date:
    Observer: Jessica Howland
    Location: Mercer Corporate Park, Robbinsville
  26. Gray Catbird Dumetella carolinensis
    # Count: 2
    Date:
    Observer: Jessica Howland
    Location: Mercer Corporate Park, Robbinsville
  27. Eastern Towhee Pipilo erythrophthalmus
    # Count: 1
    Date:
    Observer: Jessica Howland
    Location: Mercer Corporate Park, Robbinsville
  28. Common Yellowthroat Geothlypis trichas
    # Count: 3
    Date:
    Observer: Jessica Howland
    Location: Mercer Corporate Park, Robbinsville
  29. Yellow Warbler Setophaga petechia
    # Count: 2
    Date:
    Observer: Jessica Howland
    Location: Mercer Corporate Park, Robbinsville
  30. Red-tailed Hawk Buteo jamaicensis
    # Count: 1
    Date:
    Observer: Cari Welsh
    Location: CSA
  31. Eastern Phoebe Sayornis phoebe
    # Count: 1
    Date:
    Observer: Cari Welsh
    Location: CSA
  32. Northern Mockingbird Mimus polyglottos
    # Count: 1
    Date:
    Observer: Cari Welsh
    Location: CSA
  33. Wood Thrush Hylocichla mustelina
    # Count: 1
    Date:
    Observer: Cari Welsh
    Location: CSA
  34. House Finch Haemorhous mexicanus
    # Count: 1
    Date:
    Observer: Cari Welsh
    Location: CSA
  35. Baltimore Oriole Icterus galbula
    # Count: 1
    Date:
    Observer: Cari Welsh
    Location: CSA
  36. Barn Swallow Hirundo rustica
    # Count: 4
    Date:
    Observer: Jessica Howland
    Location: Abbott Marshlands--Rowan Lake/Watson Woods
  37. Cliff Swallow Petrochelidon pyrrhonota
    # Count: 6
    Date:
    Observer: Jessica Howland
    Location: Abbott Marshlands--Rowan Lake/Watson Woods
  38. Blue-gray Gnatcatcher Polioptila caerulea
    # Count: 1
    Date:
    Observer: Jessica Howland
    Location: Abbott Marshlands--Rowan Lake/Watson Woods
  39. Cooper's Hawk Accipiter cooperii
    # Count: 1
    Date:
    Observer: Diego Bustamante
    Location: Rider University
  40. Eastern Kingbird Tyrannus tyrannus
    # Count: 1
    Date:
    Observer: Diego Bustamante
    Location: Rider University
  41. American Goldfinch Spinus tristis
    # Count: 2
    Date:
    Observer: Diego Bustamante
    Location: Rider University
  42. Spotted Sandpiper Actitis macularius
    # Count: 1
    Date:
    Observer: Jessica Howland
    Location: Hamilton Veterans Park
  43. Solitary Sandpiper Tringa solitaria
    # Count: 1
    Date:
    Observer: Jessica Howland
    Location: Hamilton Veterans Park
  44. Red-shouldered Hawk Buteo lineatus
    # Count: 1
    Date:
    Observer: Jessica Howland
    Location: Hamilton Veterans Park
  45. Warbling Vireo Vireo gilvus
    # Count: 1
    Date:
    Observer: Jessica Howland
    Location: Hamilton Veterans Park
  46. American Crow Corvus brachyrhynchos
    # Count: 1
    Date:
    Observer: Jessica Howland
    Location: Hamilton Veterans Park
  47. Purple Martin Progne subis
    # Count: 13
    Date:
    Observer: Jessica Howland
    Location: Hamilton Veterans Park
  48. Ruby-crowned Kinglet Corthylio calendula
    # Count: 2
    Date:
    Observer: Jessica Howland
    Location: Hamilton Veterans Park
  49. Orchard Oriole Icterus spurius
    # Count: 2
    Date:
    Observer: Jessica Howland
    Location: Hamilton Veterans Park
  50. Brown-headed Cowbird Molothrus ater
    # Count: 1
    Date:
    Observer: Jessica Howland
    Location: Hamilton Veterans Park
  51. Common Grackle Quiscalus quiscula
    # Count: 2
    Date:
    Observer: Jessica Howland
    Location: Hamilton Veterans Park
  52. Ovenbird Seiurus aurocapilla
    # Count: 1
    Date:
    Observer: Jessica Howland
    Location: Hamilton Veterans Park
  53. Double-crested Cormorant Nannopterum auritum
    # Count: 10
    Date:
    Observer: Robert Cook
    Location: Van Nest Wildlife Refuge
  54. Black Vulture Coragyps atratus
    # Count: 1
    Date:
    Observer: Robert Cook
    Location: Van Nest Wildlife Refuge
  55. Osprey Pandion haliaetus
    # Count: 1
    Date:
    Observer: Robert Cook
    Location: Van Nest Wildlife Refuge
  56. Fish Crow Corvus ossifragus
    # Count: 1
    Date:
    Observer: Robert Cook
    Location: Van Nest Wildlife Refuge
  57. Chimney Swift Chaetura pelagica
    # Count: 6
    Date:
    Observer: David Padulo
    Location: Princeton Institute Woods & Charles Rogers Wildlife Refuge
  58. Chipping Sparrow Spizella passerina
    # Count: 2
    Date:
    Observer: David Padulo
    Location: Princeton Institute Woods & Charles Rogers Wildlife Refuge
  59. Northern Parula Setophaga americana
    # Count: 3
    Date:
    Observer: David Padulo
    Location: Princeton Institute Woods & Charles Rogers Wildlife Refuge
  60. Pine Warbler Setophaga pinus
    # Count: 1
    Date:
    Observer: David Padulo
    Location: Princeton Institute Woods & Charles Rogers Wildlife Refuge
  61. Mallard Anas platyrhynchos
    # Count: 2
    Date:
    Observer: Jessica Howland
    Location: Woodcliff Estates Retention Pond
  62. Killdeer Charadrius vociferus
    # Count: 1
    Date:
    Observer: Jessica Howland
    Location: Woodcliff Estates Retention Pond
  63. Ruddy Duck Oxyura jamaicensis
    # Count: 1
    Date:
    Observer: Katherine Tharrington
    Location: Lake Carnegie--Dam
  64. Horned Grebe Podiceps auritus
    # Count: 1
    Date:
    Observer: Katherine Tharrington
    Location: Lake Carnegie--Dam
  65. Northern Rough-winged Swallow Stelgidopteryx serripennis
    # Count: 2
    Date:
    Observer: Katherine Tharrington
    Location: Lake Carnegie--Dam
  66. Black-and-white Warbler Mniotilta varia
    # Count: 1
    Date:
    Observer: Katherine Tharrington
    Location: Lake Carnegie--Dam
  67. Palm Warbler Setophaga palmarum
    # Count: 2
    Date:
    Observer: Katherine Tharrington
    Location: Lake Carnegie--Dam
  68. Rock Pigeon Columba livia
    # Count: 3
    Date:
    Observer: Kevin Gong
    Location: The Pennington School
  69. Green-winged Teal Anas crecca
    # Count: 1
    Date:
    Observer: gretchen buxton
    Location: Abbott Marshlands--Rowan Lake/Watson Woods
  70. Black-throated Green Warbler Setophaga virens
    # Count: 1
    Date:
    Observer: Old Sam Peabody
    Location: Van Dyke Road North
  71. Carolina Chickadee Poecile carolinensis
    # Count: 1
    Date:
    Observer: Vincent F. Nichnadowicz
    Location: "home"
  72. Blue-headed Vireo Vireo solitarius
    # Count: 1
    Date:
    Observer: Ann Reichelderfer
    Location: Baldpate Mountain--Ted Stiles Preserve
  73. Red-eyed Vireo Vireo olivaceus
    # Count: 1
    Date:
    Observer: Ann Reichelderfer
    Location: Baldpate Mountain--Ted Stiles Preserve
  74. Veery Catharus fuscescens
    # Count: 1
    Date:
    Observer: Ann Reichelderfer
    Location: Baldpate Mountain--Ted Stiles Preserve
  75. Field Sparrow Spizella pusilla
    # Count: 1
    Date:
    Observer: Ann Reichelderfer
    Location: Baldpate Mountain--Ted Stiles Preserve
  76. Blue-winged Warbler Vermivora cyanoptera
    # Count: 5
    Date:
    Observer: Ann Reichelderfer
    Location: Baldpate Mountain--Ted Stiles Preserve
  77. American Redstart Setophaga ruticilla
    # Count: 3
    Date:
    Observer: Ann Reichelderfer
    Location: Baldpate Mountain--Ted Stiles Preserve
  78. Chestnut-sided Warbler Setophaga pensylvanica
    # Count: 6
    Date:
    Observer: Ann Reichelderfer
    Location: Baldpate Mountain--Ted Stiles Preserve
  79. Black-throated Blue Warbler Setophaga caerulescens
    # Count: 4
    Date:
    Observer: Ann Reichelderfer
    Location: Baldpate Mountain--Ted Stiles Preserve
  80. Scarlet Tanager Piranga olivacea
    # Count: 4
    Date:
    Observer: Ann Reichelderfer
    Location: Baldpate Mountain--Ted Stiles Preserve
  81. Rose-breasted Grosbeak Pheucticus ludovicianus
    # Count: 3
    Date:
    Observer: Ann Reichelderfer
    Location: Baldpate Mountain--Ted Stiles Preserve
  82. Indigo Bunting Passerina cyanea
    # Count: 1
    Date:
    Observer: Ann Reichelderfer
    Location: Baldpate Mountain--Ted Stiles Preserve
  83. Northern Waterthrush Parkesia noveboracensis
    # Count: 1
    Date:
    Observer: Scott Lundquist
    Location: 115 Lewis Brook Rd, Pennington US-NJ 40.33422, -74.78659
  84. Magnolia Warbler Setophaga magnolia
    # Count: 2
    Date:
    Observer: Scott Lundquist
    Location: 115 Lewis Brook Rd, Pennington US-NJ 40.33422, -74.78659
  85. Laughing Gull Leucophaeus atricilla
    # Count: 2
    Date:
    Observer: Susan Matson
    Location: Van Nest Wildlife Refuge
  86. Pileated Woodpecker Dryocopus pileatus
    # Count: 1
    Date:
    Observer: Susan Matson
    Location: Van Nest Wildlife Refuge
  87. Brown Thrasher Toxostoma rufum
    # Count: 1
    Date:
    Observer: Susan Matson
    Location: Van Nest Wildlife Refuge
  88. Prairie Warbler Setophaga discolor
    # Count: 1
    Date:
    Observer: Irene Sha
    Location: Princeton Institute Woods & Charles Rogers Wildlife Refuge
  89. Great Egret Ardea alba
    # Count: X
    Date:
    Observer: Kathleen Moran
    Location: Princeton Institute Woods & Charles Rogers Wildlife Refuge
  90. Wood Duck Aix sponsa
    # Count: 2
    Date:
    Observer: Jack Hagan
    Location: Maidenhead Meadows Park
  91. Belted Kingfisher Megaceryle alcyon
    # Count: 1
    Date:
    Observer: Jack Hagan
    Location: Maidenhead Meadows Park
  92. Swamp Sparrow Melospiza georgiana
    # Count: 2
    Date:
    Observer: Jack Hagan
    Location: Maidenhead Meadows Park
  93. Hermit Thrush Catharus guttatus
    # Count: X
    Date:
    Observer: richard moran
    Location: Princeton Institute Woods & Charles Rogers Wildlife Refuge
  94. American Kestrel Falco sparverius
    # Count: 1
    Date:
    Observer: Daniel Day
    Location: Pole Farm (Mercer County Park NW)
  95. Grasshopper Sparrow Ammodramus savannarum
    # Count: 1
    Date:
    Observer: Daniel Day
    Location: Pole Farm (Mercer County Park NW)
  96. Savannah Sparrow Passerculus sandwichensis
    # Count: 2
    Date:
    Observer: Daniel Day
    Location: Pole Farm (Mercer County Park NW)
  97. Eastern Meadowlark Sturnella magna
    # Count: 2
    Date:
    Observer: Daniel Day
    Location: Pole Farm (Mercer County Park NW)
  98. Mute Swan Cygnus olor
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: Millstone River Impoundment
  99. Green Heron Butorides virescens
    # Count: 1
    Date:
    Observer: Alexander Sokolowski
    Location: Goldfinch Boulevard, Princeton, New Jersey, US (40.313, -74.638)
  100. Nashville Warbler Leiothlypis ruficapilla
    # Count: 1
    Date:
    Observer: Winifred Spar
    Location: Princeton Institute Woods & Charles Rogers Wildlife Refuge
  101. Wild Turkey Meleagris gallopavo
    # Count: 4
    Date:
    Observer: WCAS Audubon
    Location: Hillside Farm Preserve
  102. Ruby-throated Hummingbird Archilochus colubris
    # Count: 1
    Date:
    Observer: WCAS Audubon
    Location: Hillside Farm Preserve
  103. Sharp-shinned Hawk Accipiter striatus
    # Count: 1
    Date:
    Observer: WCAS Audubon
    Location: Hillside Farm Preserve
  104. Yellow-throated Vireo Vireo flavifrons
    # Count: 4
    Date:
    Observer: WCAS Audubon
    Location: Hillside Farm Preserve
  105. Common Raven Corvus corax
    # Count: 1
    Date:
    Observer: WCAS Audubon
    Location: Hillside Farm Preserve
  106. Louisiana Waterthrush Parkesia motacilla
    # Count: 1
    Date:
    Observer: WCAS Audubon
    Location: Hillside Farm Preserve
  107. Cedar Waxwing Bombycilla cedrorum
    # Count: 15
    Date:
    Observer: gretchen buxton
    Location: Abbott Marshlands--John A. Roebling Park
  108. Yellow-billed Cuckoo Coccyzus americanus
    # Count: 1
    Date:
    Observer: Bill Pitman
    Location: Mercer County Park
  109. White-eyed Vireo Vireo griseus
    # Count: 1
    Date:
    Observer: Bill Pitman
    Location: Mercer County Park
  110. Swainson's Thrush Catharus ustulatus
    # Count: 1
    Date:
    Observer: Bill Pitman
    Location: Mercer County Park
  111. Black-capped Chickadee Poecile atricapillus
    # Count: 1
    Date:
    Observer: Susan Matson
    Location: Princeton Institute Woods & Charles Rogers Wildlife Refuge
  112. Marsh Wren Cistothorus palustris
    # Count: 1
    Date:
    Observer: Jessica Howland
    Location: Abbott Marshlands--John A. Roebling Park
  113. Merlin Falco columbarius
    # Count: 1
    Date:
    Observer: Erik Dawes
    Location: 38 Hibiscus Ln, Trenton US-NJ 40.20882, -74.62140
  114. Lesser Yellowlegs Tringa flavipes
    # Count: 2
    Date:
    Observer: Jessica Howland
    Location: Miry Run Natural Area
  115. Least Sandpiper Calidris minutilla
    # Count: 8
    Date:
    Observer: Jessica Howland
    Location: Miry Run Natural Area
  116. Ring-billed Gull Larus delawarensis
    # Count: 3
    Date:
    Observer: Vincent F. Nichnadowicz
    Location: "home"
  117. Hooded Merganser Lophodytes cucullatus
    # Count: 1
    Date:
    Observer: Christopher Whiteley
    Location: Delaware and Raritan Canal SP--Abbot Marshlands
  118. Pied-billed Grebe Podilymbus podiceps
    # Count: 1
    Date:
    Observer: Joseph Woodmansee
    Location: Mercer County Park
  119. Hooded Warbler Setophaga citrina
    # Count: 1
    Date:
    Observer: Sharyn Magee
    Location: Baldpate Mountain--Ted Stiles Preserve
  120. Purple Finch Haemorhous purpureus
    # Count: 1
    Date:
    Observer: gretchen buxton
    Location: Pleasant valley road
  121. Bank Swallow Riparia riparia
    # Count: 1
    Date:
    Observer: Jessica Howland
    Location: Miry Run Natural Area
  122. Broad-winged Hawk Buteo platypterus
    # Count: 1
    Date:
    Observer: Jessica Howland
    Location: Pole Farm (Mercer County Park NW)
  123. Common Merganser Mergus merganser
    # Count: 2
    Date:
    Observer: Julian Pozzi
    Location: Princeton Institute Woods & Charles Rogers Wildlife Refuge
  124. Northern Harrier Circus hudsonius
    # Count: 1
    Date:
    Observer: Steven Martz
    Location: Pole Farm (Mercer County Park NW)
  125. Prothonotary Warbler Protonotaria citrea
    # Count: 1
    Date:
    Observer: Bill Pitman
    Location: Hamilton Veterans Park
  126. American Woodcock Scolopax minor
    # Count: 2
    Date:
    Observer: Beth Nichols
    Location: Hillside Farm Preserve
  127. Wilson's Snipe Gallinago delicata
    # Count: 4
    Date:
    Observer: JamEs ParRis
    Location: Pole Farm (Mercer County Park NW)
  128. Great Horned Owl Bubo virginianus
    # Count: 1
    Date:
    Observer: JamEs ParRis
    Location: Pole Farm (Mercer County Park NW)
  129. Peregrine Falcon Falco peregrinus
    # Count: 1
    Date:
    Observer: Beth Nichols
    Location: Hillside Farm Preserve
  130. Pine Siskin Spinus pinus
    # Count: X
    Date:
    Observer: Maia S
    Location: Griggs Farm
  131. Worm-eating Warbler Helmitheros vermivorum
    # Count: 1
    Date:
    Observer: Bill Pitman
    Location: Abbott Marshlands--John A. Roebling Park
  132. Yellow-bellied Sapsucker Sphyrapicus varius
    # Count: 1
    Date:
    Observer: Sharyn Magee
    Location: Baldpate Mountain--Ted Stiles Preserve
  133. Rusty Blackbird Euphagus carolinus
    # Count: 1
    Date:
    Observer: Maia S
    Location: Griggs Farm
  134. Golden-crowned Kinglet Regulus satrapa
    # Count: 1
    Date:
    Observer: Bill Pitman
    Location: Delaware and Raritan Canal SP--Abbot Marshlands
  135. Dark-eyed Junco Junco hyemalis
    # Count: 1
    Date:
    Observer: Cari Welsh
    Location: 17 Theresa Drive, Trenton, New Jersey, US (40.289, -74.743)
  136. Brown Creeper Certhia americana
    # Count: 1
    Date:
    Observer: Old Sam Peabody
    Location: Fiddler's Creek/Hollystone Preserve
  137. Barred Owl Strix varia
    # Count: 1
    Date:
    Observer: Old Sam Peabody
    Location: Home
  138. Short-eared Owl Asio flammeus
    # Count: 1
    Date:
    Observer: Elaine Orzechowski
    Location: Pole Farm (Mercer County Park NW)
  139. Eastern Screech-Owl Megascops asio
    # Count: 1
    Date:
    Observer: Chris Coughlan
    Location: Baldpate Mountain
  140. Herring Gull Larus argentatus
    # Count: 20
    Date:
    Observer: Christopher Plummer
    Location: Abbott Marshlands--John A. Roebling Park
  141. Common Loon Gavia immer
    # Count: 1
    Date:
    Observer: Kojo Baidoo
    Location: Princeton University campus
  142. Lesser Scaup Aythya affinis
    # Count: 1
    Date:
    Observer: Ben Hejna
    Location: Van Nest Wildlife Refuge
  143. Bufflehead Bucephala albeola
    # Count: 2
    Date:
    Observer: Ben Hejna
    Location: Van Nest Wildlife Refuge
  144. American Bittern Botaurus lentiginosus
    # Count: 1
    Date:
    Observer: Jessica Howland
    Location: My home woods
  145. Ring-necked Duck Aythya collaris
    # Count: 2
    Date:
    Observer: David Padulo
    Location: Mercer County Park
  146. Greater Yellowlegs Tringa melanoleuca
    # Count: 3
    Date:
    Observer: Bill Pitman
    Location: Mercer County Park
  147. White-crowned Sparrow Zonotrichia leucophrys
    # Count: 1
    Date:
    Observer: Frank Gargione
    Location: Pole Farm (Mercer County Park NW)
  148. Blue-winged Teal Spatula discors
    # Count: 1
    Date:
    Observer: Steven Martz
    Location: Abbott Marshlands--John A. Roebling Park
  149. Glossy Ibis Plegadis falcinellus
    # Count: 2
    Date:
    Observer: Bill Pitman
    Location: Hamilton Veterans Park
  150. American Black Duck Anas rubripes
    # Count: 1
    Date:
    Observer: Laura Nawrocik
    Location: Colonial Lake & Park
  151. Virginia Rail Rallus limicola
    # Count: 1
    Date:
    Observer: Bill Pitman
    Location: Princess Road Marsh
  152. Winter Wren Troglodytes hiemalis
    # Count: X
    Date:
    Observer: Kathleen Moran
    Location: Dyson Tract--Brearley House & Meadow Trail
  153. Vesper Sparrow Pooecetes gramineus
    # Count: 1
    Date:
    Observer: JamEs ParRis
    Location: Pole Farm (Mercer County Park NW)
  154. Fox Sparrow Passerella iliaca
    # Count: 1
    Date:
    Observer: Sharyn Magee
    Location: Baldpate Mountain--Ted Stiles Preserve
  155. American Wigeon Mareca americana
    # Count: 1
    Date:
    Observer: Susan Matson
    Location: North West Mercer Park, Lawrence Township US-NJ 40.31592, -74.74178
  156. American Tree Sparrow Spizelloides arborea
    # Count: 1
    Date:
    Observer: Stephanie Sawhney
    Location: Pole Farm (Mercer County Park NW)
  157. Greater Scaup Aythya marila
    # Count: 1
    Date:
    Observer: Chris Brown
    Location: I-295 Scenic Overlook
  158. Common Goldeneye Bucephala clangula
    # Count: 1
    Date:
    Observer: Chris Brown
    Location: I-295 Scenic Overlook
  159. Red-breasted Merganser Mergus serrator
    # Count: 1
    Date:
    Observer: Chris Brown
    Location: I-295 Scenic Overlook
  160. Great Cormorant Phalacrocorax carbo
    # Count: 1
    Date:
    Observer: Chris Brown
    Location: I-295 Scenic Overlook
  161. Bonaparte's Gull Chroicocephalus philadelphia
    # Count: 3
    Date:
    Observer: Jessica Howland
    Location: Waterfront Park and Riverview Plaza
  162. Red-breasted Nuthatch Sitta canadensis
    # Count: 1
    Date:
    Observer: Erica Heusser
    Location: Hamilton Veterans Park
  163. Gadwall Mareca strepera
    # Count: 2
    Date:
    Observer: Nancy Burns
    Location: Abbott Marshlands--John A. Roebling Park
  164. Northern Shoveler Spatula clypeata
    # Count: 9
    Date:
    Observer: Bill Pitman
    Location: Abbott Marshlands--John A. Roebling Park
  165. American Coot Fulica americana
    # Count: 2
    Date:
    Observer: Ray Duffy
    Location: Mercer Corporate Park, Robbinsville
  166. Northern Saw-whet Owl Aegolius acadicus
    # Count: 1
    Date:
    Observer: Rose Marie
    Location: Mercer County Park
  167. American Pipit Anthus rubescens
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: Pole Farm (Mercer County Park NW)
  168. Sandhill Crane Antigone canadensis
    # Count: 6
    Date:
    Observer: Benjamin Antieau
    Location: Olden Ln, Princeton US-NJ 40.33278, -74.66561
  169. Cackling Goose Branta hutchinsii
    # Count: 1
    Date:
    Observer: Robert Cook
    Location: Miry Run Natural Area
  170. Great Black-backed Gull Larus marinus
    # Count: 1
    Date:
    Observer: Jessica Howland
    Location: I-295 Scenic Overlook
  171. Orange-crowned Warbler Leiothlypis celata
    # Count: 1
    Date:
    Observer: jeff lubchansky
    Location: Abbott Marshlands--John A. Roebling Park
  172. Snow Goose Anser caerulescens
    # Count: 100
    Date:
    Observer: Anna DePinho
    Location: 940 Windsor Perrineville Rd, East Windsor US-NJ 40.23341, -74.51020
  173. Northern Pintail Anas acuta
    # Count: 3
    Date:
    Observer: Yiming Zuo
    Location: Abbott Marshlands--John A. Roebling Park
  174. Golden Eagle Aquila chrysaetos
    # Count: 1
    Date:
    Observer: Bill Pitman
    Location: Hamilton Veterans Park
  175. Lesser Black-backed Gull Larus fuscus
    # Count: 1
    Date:
    Observer: Jessica Howland
    Location: Waterfront Park and Riverview Plaza
  176. Horned Lark Eremophila alpestris
    # Count: 5
    Date:
    Observer: Old Sam Peabody
    Location: Updike Farmstead
  177. Canvasback Aythya valisineria
    # Count: 1
    Date:
    Observer: Bill Pitman
    Location: Hamilton Veterans Park
  178. Red-headed Woodpecker Melanerpes erythrocephalus
    # Count: 1
    Date:
    Observer: WCAS Audubon
    Location: Hillside Farm Preserve
  179. Iceland Gull Larus glaucoides
    # Count: 1
    Date:
    Observer: Old Sam Peabody
    Location: Mercer County Park
  180. Glaucous Gull Larus hyperboreus
    # Count: 1
    Date:
    Observer: JamEs ParRis
    Location: Pole Farm (Mercer County Park NW)
  181. Snow Bunting Plectrophenax nivalis
    # Count: 1
    Date:
    Observer: Bill Pitman
    Location: Mercer County Park
  182. Long-tailed Duck Clangula hyemalis
    # Count: 1
    Date:
    Observer: Chris Brown
    Location: Abbott Marshlands--Rowan Lake/Watson Woods
  183. Lincoln's Sparrow Melospiza lincolnii
    # Count: 1
    Date:
    Observer: Joseph Woodmansee
    Location: Pole Farm (Mercer County Park NW)
  184. Black-headed Gull Chroicocephalus ridibundus
    # Count: 1
    Date:
    Observer: Robert Horton
    Location: Mercer Corporate Park, Robbinsville
  185. Rough-legged Hawk Buteo lagopus
    # Count: 1
    Date:
    Observer: WCAS Audubon
    Location: Hillside Farm Preserve
  186. Townsend's Warbler Setophaga townsendi
    # Count: 1
    Date:
    Observer: Ryan Green
    Location: Trenton Sewage Ponds
  187. Greater White-fronted Goose Anser albifrons
    # Count: 1
    Date:
    Observer: Erica Heusser
    Location: Hamilton Veterans Park
  188. White-winged Scoter Melanitta deglandi
    # Count: 1
    Date:
    Observer: Elizabeth Roedell
    Location: Millstone River Impoundment
  189. Barnacle Goose Branta leucopsis
    # Count: 1
    Date:
    Observer: John Vassallo
    Location: Mercer Corporate Park, Robbinsville
  190. Tundra Swan Cygnus columbianus
    # Count: 1
    Date:
    Observer: Chris Brown
    Location: Hamilton Yard
  191. Harlequin Duck Histrionicus histrionicus
    # Count: 1
    Date:
    Observer: David Dorini
    Location: Mercer Harlequin Duck(40.2159,-74.7711)
  192. Dunlin Calidris alpina
    # Count: 3
    Date:
    Observer: Bill Hewitt
    Location: Miry Run Natural Area
  193. Western Cattle Egret Bubulcus ibis
    # Count: 1
    Date:
    Observer: Jonathan Bain
    Location: Mercer Corporate Park, Robbinsville
  194. Redhead Aythya americana
    # Count: 1
    Date:
    Observer: Marilynn Mullen
    Location: Grover’s mill pond
  195. Tennessee Warbler Leiothlypis peregrina
    # Count: 1
    Date:
    Observer: Jack Hagan
    Location: Pole Farm (Mercer County Park NW)
  196. Yellow-breasted Chat Icteria virens
    # Count: 1
    Date:
    Observer: Ann Reichelderfer
    Location: Mountain Lakes Park
  197. Blackpoll Warbler Setophaga striata
    # Count: 4
    Date:
    Observer: Scott Maughan
    Location: Dyson Tract--Brearley House & Meadow Trail
  198. Common Nighthawk Chordeiles minor
    # Count: 2
    Date:
    Observer: Fairfax Hutter
    Location: Baldpate Mountain--Ted Stiles Preserve
  199. Blue Grosbeak Passerina caerulea
    # Count: 1
    Date:
    Observer: Old Sam Peabody
    Location: Abbott Marshlands--John A. Roebling Park
  200. Least Flycatcher Empidonax minimus
    # Count: 1
    Date:
    Observer: Bill Pitman
    Location: Mercer County Park
  201. Bobolink Dolichonyx oryzivorus
    # Count: 5
    Date:
    Observer: Anonymous eBirder
    Location: Pole Farm (Mercer County Park NW)
  202. Cape May Warbler Setophaga tigrina
    # Count: 1
    Date:
    Observer: Richard Fleming
    Location: Princeton—Butler Tract
  203. Caspian Tern Hydroprogne caspia
    # Count: 2
    Date:
    Observer: John Wheelock
    Location: Mercer County Park
  204. Clay-colored Sparrow Spizella pallida
    # Count: 1
    Date:
    Observer: Bill Pitman
    Location: Fiddler's Creek/Hollystone Preserve
  205. Wilson's Warbler Cardellina pusilla
    # Count: 1
    Date:
    Observer: Erica Heusser
    Location: Pole Farm (Mercer County Park NW)
  206. Bay-breasted Warbler Setophaga castanea
    # Count: 1
    Date:
    Observer: Todd Dowling
    Location: Princeton Institute Woods & Charles Rogers Wildlife Refuge
  207. Blackburnian Warbler Setophaga fusca
    # Count: 1
    Date:
    Observer: Bill Hewitt
    Location: Mercer Meadows--Hunt House
  208. Little Blue Heron Egretta caerulea
    # Count: 1
    Date:
    Observer: JamEs ParRis
    Location: Carnegie Center Drive
  209. Eastern Wood-Pewee Contopus virens
    # Count: 2
    Date:
    Observer: Bill Hewitt
    Location: Pole Farm (Mercer County Park NW)
  210. Lark Sparrow Chondestes grammacus
    # Count: 1
    Date:
    Observer: Jack Hagan
    Location: North West Mercer Park, Lawrence Township US-NJ 40.30614, -74.74789
  211. Willow Flycatcher Empidonax traillii
    # Count: 1
    Date:
    Observer: WCAS Audubon
    Location: St. Michael's Farm Preserve
  212. Yellow-bellied Flycatcher Empidonax flaviventris
    # Count: 1
    Date:
    Observer: WCAS Audubon
    Location: Hillside Farm Preserve
  213. Canada Warbler Cardellina canadensis
    # Count: 1
    Date:
    Observer: adelaide kuhn
    Location: model ave, hopewell nj
  214. Gray-cheeked Thrush Catharus minimus
    # Count: 1
    Date:
    Observer: Bill Pitman
    Location: Abbott Marshlands--John A. Roebling Park
  215. Olive-sided Flycatcher Contopus cooperi
    # Count: 1
    Date:
    Observer: Old Sam Peabody
    Location: Van Dyke Road North
  216. American Golden-Plover Pluvialis dominica
    # Count: 1
    Date:
    Observer: Scott Barnes
    Location: Rosedale Park
  217. Mourning Warbler Geothlypis philadelphia
    # Count: 1
    Date:
    Observer: Drew McQuade
    Location: Van Nest Wildlife Refuge
  218. Black-crowned Night Heron Nycticorax nycticorax
    # Count: 1
    Date:
    Observer: Bill Pitman
    Location: Van Nest Wildlife Refuge
  219. Black-bellied Plover Pluvialis squatarola
    # Count: 13
    Date:
    Observer: Chris Brown
    Location: Reed Sod Farm / Old York Road (Mercer)
  220. Philadelphia Vireo Vireo philadelphicus
    # Count: 1
    Date:
    Observer: Chris Brown
    Location: Princeton Institute Woods & Charles Rogers Wildlife Refuge
  221. Sora Porzana carolina
    # Count: 1
    Date:
    Observer: Bill Pitman
    Location: Abbott Marshlands--John A. Roebling Park
  222. Semipalmated Plover Charadrius semipalmatus
    # Count: 1
    Date:
    Observer: Jessica Howland
    Location: Reed Sod Farm / Old York Road (Mercer)
  223. Cerulean Warbler Setophaga cerulea
    # Count: 1
    Date:
    Observer: WCAS Audubon
    Location: Hillside Farm Preserve
  224. Pectoral Sandpiper Calidris melanotos
    # Count: 2
    Date:
    Observer: Drew McQuade
    Location: Reed Sod Farm / Old York Road (Mercer)
  225. Painted Bunting Passerina ciris
    # Count: 1
    Date:
    Observer: Samantha Bean
    Location: FLUTTER BY MEADOWS, Hopewell, New Jersey, US (40.368, -74.786)
  226. Upland Sandpiper Bartramia longicauda
    # Count: 1
    Date:
    Observer: Susan Treesh
    Location: Reed Sod Farm / Old York Road (Mercer)
  227. Buff-breasted Sandpiper Calidris subruficollis
    # Count: 3
    Date:
    Observer: Susan Treesh
    Location: Reed Sod Farm / Old York Road (Mercer)
  228. Golden-winged Warbler Vermivora chrysoptera
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: Pole Farm (Mercer County Park NW)
  229. Semipalmated Sandpiper Calidris pusilla
    # Count: 1
    Date:
    Observer: Old Sam Peabody
    Location: Mercer County Park
  230. Black-billed Cuckoo Coccyzus erythropthalmus
    # Count: 1
    Date:
    Observer: gretchen buxton
    Location: Baldpate Mountain--Ted Stiles Preserve
  231. Forster's Tern Sterna forsteri
    # Count: 2
    Date:
    Observer: Bill Pitman
    Location: Mercer County Park
  232. Sedge Wren Cistothorus stellaris
    # Count: 2
    Date:
    Observer: d w
    Location: Old Mill Road
  233. Kentucky Warbler Geothlypis formosa
    # Count: 1
    Date:
    Observer: Eddie Politz
    Location: Baldpate Mountain--Ted Stiles Preserve
  234. Dickcissel Spiza americana
    # Count: 1
    Date:
    Observer: John Collins
    Location: US-NJ-Hopewell-250 Federal City Rd - 40.3170x-74.7582
  235. Least Bittern Ixobrychus exilis
    # Count: 1
    Date:
    Observer: Chris Brown
    Location: Abbott Marshlands--John A. Roebling Park
  236. Acadian Flycatcher Empidonax virescens
    # Count: 1
    Date:
    Observer: Sharyn Magee
    Location: McBurney Woods
  237. Alder Flycatcher Empidonax alnorum
    # Count: 1
    Date:
    Observer: Alison Astalos
    Location: Baldpate Mountain--Ted Stiles Preserve
  238. Connecticut Warbler Oporornis agilis
    # Count: 1
    Date:
    Observer: WCAS Audubon
    Location: Hillside Farm Preserve
  239. Snowy Egret Egretta thula
    # Count: 1
    Date:
    Observer: Jessica Howland
    Location: Abbott Marshlands--John A. Roebling Park
  240. Harris's Sparrow Zonotrichia querula
    # Count: 1
    Date:
    Observer: Carl Adams
    Location: Hancock Field (Bird from the road only)
  241. Ross's Goose Anser rossii
    # Count: 1
    Date:
    Observer: Bill Pitman
    Location: Reed Sod Farm / Old York Road (Mercer)
  242. American Goshawk Accipiter atricapillus
    # Count: 1
    Date:
    Observer: Bill Pitman
    Location: Mercer County Park
  243. Evening Grosbeak Coccothraustes vespertinus
    # Count: 1
    Date:
    Observer: Fairfax Hutter
    Location: Fiddler's Creek/Hollystone Preserve
  244. Common Gallinule Gallinula galeata
    # Count: 1
    Date:
    Observer: Robert Mercer
    Location: Abbott Marshlands--John A. Roebling Park
  245. Barn Owl Tyto alba
    # Count: 1
    Date:
    Observer: Chris Brown
    Location: Hamilton Yard
  246. Yellow-crowned Night Heron Nyctanassa violacea
    # Count: 1
    Date:
    Observer: Terryl Tindall
    Location: Delaware and Raritan Canal SP--Dyson Tract Area
  247. Summer Tanager Piranga rubra
    # Count: 1
    Date:
    Observer: Sharyn Magee
    Location: Baldpate Mountain--Ted Stiles Preserve
  248. Short-billed Dowitcher Limnodromus griseus
    # Count: 1
    Date:
    Observer: Alex Wiebe
    Location: Princeton University campus
  249. Mississippi Kite Ictinia mississippiensis
    # Count: 1
    Date:
    Observer: JamEs ParRis
    Location: Pole Farm (Mercer County Park NW)
  250. Yellow-headed Blackbird Xanthocephalus xanthocephalus
    # Count: 1
    Date:
    Observer: Bill Dix
    Location: Pole Farm (Mercer County Park NW)
  251. Baird's Sandpiper Calidris bairdii
    # Count: 1
    Date:
    Observer: Ken Walsh
    Location: Reed Sod Farm / Old York Road (Mercer)
  252. Henslow's Sparrow Centronyx henslowii
    # Count: 1
    Date:
    Observer: Andrew Eppedio
    Location: Pole Farm (Mercer County Park NW)
  253. Least Tern Sternula antillarum
    # Count: 2
    Date:
    Observer: Terryl Tindall
    Location: Mercer Corporate Park, Robbinsville
  254. Yellow-throated Warbler Setophaga dominica
    # Count: 1
    Date:
    Observer: Chris Brown
    Location: Abbott Marshlands--John A. Roebling Park
  255. Common Redpoll Acanthis flammea
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: Mercer County Park
  256. Rufous Hummingbird Selasphorus rufus
    # Count: 1
    Date:
    Observer: Old Sam Peabody
    Location: Federal City Road, Pennington, New Jersey, US (Private Residence)
  257. White-winged Crossbill Loxia leucoptera
    # Count: 1
    Date:
    Observer: David Weber
    Location: Loveless Nature Preserve
  258. Snowy Owl Bubo scandiacus
    # Count: 1
    Date:
    Observer: Kevin Fox
    Location: Pole Farm (Mercer County Park NW)
  259. Brant Branta bernicla
    # Count: 1
    Date:
    Observer: Robert Horton
    Location: Assunpink WMA--Mercer Co.
  260. Nelson's Sparrow Ammospiza nelsoni
    # Count: 1
    Date:
    Observer: Vincent F. Nichnadowicz
    Location: Miry Run Natural Area
  261. Surf Scoter Melanitta perspicillata
    # Count: 1
    Date:
    Observer: David Dorini
    Location: Mercer County Park
  262. Black Tern Chlidonias niger
    # Count: 2
    Date:
    Observer: Chris Brown
    Location: I-295 Scenic Overlook
  263. Northern Bobwhite Colinus virginianus
    # Count: 1
    Date:
    Observer: Chris Daly
    Location: South Stony Brook Rd
  264. Red-throated Loon Gavia stellata
    # Count: 1
    Date:
    Observer: Brian Moore
    Location: Mercer County Park
  265. Red-necked Grebe Podiceps grisegena
    # Count: 1
    Date:
    Observer: Robert Francis
    Location: Mercer County Park
  266. Black-bellied Whistling-Duck Dendrocygna autumnalis
    # Count: 2
    Date:
    Observer: Chris Brown
    Location: Hamilton Yard
  267. Northern Shrike Lanius borealis
    # Count: 1
    Date:
    Observer: Landis Eaton
    Location: Mount Rose Preserve
  268. Trumpeter Swan Cygnus buccinator
    # Count: 1
    Date:
    Observer: Angus Wilson
    Location: Rosedale Park
  269. Ash-throated Flycatcher Myiarchus cinerascens
    # Count: 1
    Date:
    Observer: Henry Buser
    Location: Mercer County Park
  270. Black-throated Gray Warbler Setophaga nigrescens
    # Count: 1
    Date:
    Observer: Alejandro Naranjo Sandoval
    Location: 1049 Old York Rd, East Windsor US-NJ (40.2297,-74.5316)
  271. King Rail Rallus elegans
    # Count: 1
    Date:
    Observer: Pete Bacinski
    Location: Mercer Corporate Park, Robbinsville
  272. Eastern Whip-poor-will Antrostomus vociferus
    # Count: 1
    Date:
    Observer: Ernest Hahn
    Location: Baldpate Mountain--Ted Stiles Preserve
  273. Eurasian Wigeon Mareca penelope
    # Count: 1
    Date:
    Observer: Old Sam Peabody
    Location: Abbott Marshlands--John A. Roebling Park
  274. Little Gull Hydrocoloeus minutus
    # Count: 1
    Date:
    Observer: Mark Gallagher
    Location: Washington Crossing State Park
  275. White-rumped Sandpiper Calidris fuscicollis
    # Count: 3
    Date:
    Observer: Steven Albert
    Location: Reed Sod Farm / Old York Road (Mercer)
  276. Franklin's Gull Leucophaeus pipixcan
    # Count: 1
    Date:
    Observer: Vincent F. Nichnadowicz
    Location: PSE&G public fishing pier
  277. Bicknell's Thrush Catharus bicknelli
    # Count: 1
    Date:
    Observer: Chris Brown
    Location: Hamilton Yard
  278. Red Phalarope Phalaropus fulicarius
    # Count: 1
    Date:
    Observer: Christina Riehl
    Location: Mercer Corporate Park, Robbinsville
  279. Sanderling Calidris alba
    # Count: 3
    Date:
    Observer: Robert Ferguson
    Location: Gordon Road
  280. Stilt Sandpiper Calidris himantopus
    # Count: 1
    Date:
    Observer: Louis Bizzarro
    Location: Reed Sod Farm / Old York Road (Mercer)
  281. Ruddy Turnstone Arenaria interpres
    # Count: 1
    Date:
    Observer: Kirsten Abildskov
    Location: Reed Sod Farm / Old York Road (Mercer)
  282. Western Kingbird Tyrannus verticalis
    # Count: 1
    Date:
    Observer: Vincent F. Nichnadowicz
    Location: Bristol-Myers Squibb, Hopewell
  283. Pink-footed Goose Anser brachyrhynchus
    # Count: 1
    Date:
    Observer: Mary DeLia
    Location: Home Stretch - E. Windsor, NJ
  284. Lapland Longspur Calcarius lapponicus
    # Count: 1
    Date:
    Observer: Marc Chelemer
    Location: Imlaystown Road Horse Track
  285. Royal Tern Thalasseus maximus
    # Count: 1
    Date:
    Observer: Chris Brown
    Location: Mercer County Park
  286. Swallow-tailed Kite Elanoides forficatus
    # Count: 2
    Date:
    Observer: Mark Gallagher
    Location: Baldpate Mountain--Ted Stiles Preserve
  287. Red Crossbill Loxia curvirostra
    # Count: 3
    Date:
    Observer: Chris Brown
    Location: Pole Farm (Mercer County Park NW)
  288. Northern Lapwing Vanellus vanellus
    # Count: 1
    Date:
    Observer: Samuel Paul Galick
    Location: Mercer Corporate Park, Robbinsville
  289. LeConte's Sparrow Ammospiza leconteii
    # Count: 1
    Date:
    Observer: William Keim
    Location: Rosedale Park
  290. Crested Caracara Caracara plancus
    # Count: 1
    Date:
    Observer: Chris Brown
    Location: Princeton Junction--Grover Farm
  291. Ruffed Grouse Bonasa umbellus
    # Count: 2
    Date:
    Observer: Sharyn Magee
    Location: Stony Brook-Millstone Watershed Preserve
  292. Ring-necked Pheasant Phasianus colchicus
    # Count: 1
    Date:
    Observer: William Anderson
    Location: Anderson Residence
  293. Hudsonian Godwit Limosa haemastica
    # Count: 4
    Date:
    Observer: Tom Bailey
    Location: Gordon Rd farm fields
  294. Northern Wheatear Oenanthe oenanthe
    # Count: 1
    Date:
    Observer: Peter Kwiatek
    Location: Rosedale Park
  295. Scissor-tailed Flycatcher Tyrannus forficatus
    # Count: 1
    Date:
    Observer: Frank Windfelder
    Location: Mercer County Park
  296. Loggerhead Shrike Lanius ludovicianus
    # Count: 1
    Date:
    Observer: David Harrison
    Location: Rosedale Park
  297. Boreal Chickadee Poecile hudsonicus
    # Count: 1
    Date:
    Observer: August Mirabella
    Location: Marquand Pk.
  298. Fulvous Whistling-Duck Dendrocygna bicolor
    # Count: 1
    Date:
    Observer: Val Landwehr
    Location: Trenton Marsh
  299. Hoary Redpoll Acanthis hornemanni
    # Count: 2
    Date:
    Observer: New Jersey Historical Records
    Location: Princeton
  300. Long-eared Owl Asio otus
    # Count: 1

Exotic: Escapee (11)

  1. Graylag Goose Anser anser
    # Count: 4
    Date:
    Observer: Will Kostick
    Location: Hamilton Veterans Park
  2. Indian Peafowl Pavo cristatus
    # Count: X
    Date:
    Observer: Anonymous eBirder
    Location: Grounds for Sculpture
  3. Black Swan Cygnus atratus
    # Count: 2
    Date:
    Observer: Laura Hyatt
    Location: 200 Etra Road, Hightstown, New Jersey, US (40.258, -74.519)
  4. Helmeted Guineafowl Numida meleagris
    # Count: 1
    Date:
    Observer: Old Sam Peabody
    Location: Home
  5. Swan Goose Anser cygnoides
    # Count: 3
    Date:
    Observer: Alex Lamoreaux
    Location: Hamilton Veterans Park
  6. Budgerigar Melopsittacus undulatus
    # Count: 1
    Date:
    Observer: Chris Brown
    Location: 1059 Old York Rd, East Windsor US-NJ (40.2294,-74.5313)
  7. Chukar Alectoris chukar
    # Count: 1
    Date:
    Observer: Larry Witham
    Location: 55 Sedona
  8. White-necked Raven Corvus albicollis
    # Count: 1
    Date:
    Observer: JamEs ParRis
    Location: Hamilton AMC Solar Pole
  9. Scaly-breasted Munia Lonchura punctulata
    # Count: 1
    Date:
    Observer: Steven Martz
    Location: Abbott Marshlands--John A. Roebling Park
  10. Egyptian Goose Alopochen aegyptiaca
    # Count: 6
    Date:
    Observer: Laura Nawrocik
    Location: Rider University
  11. European Goldfinch Carduelis carduelis
    # Count: 1
    Date:
    Observer: Chuck Hansen
    Location: New Rd Hopewell Twp

Hybrids (10)

  1. Carolina x Black-capped Chickadee (hybrid) Poecile carolinensis x atricapillus
    # Count: 2
    Date:
    Observer: Jim Myers
    Location: Maidenhead Meadows Park
  2. Mallard x American Black Duck (hybrid) Anas platyrhynchos x rubripes
    # Count: 2
    Date:
    Observer: Alex Pillapakkam
    Location: Hamilton Veterans Park
  3. Snow x Canada Goose (hybrid) Anser caerulescens x Branta canadensis
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: Hamilton Veterans Park
  4. Barnacle x Canada Goose (hybrid) Branta leucopsis x canadensis
    # Count: 1
    Date:
    Observer: Ken Walsh
    Location: Mercer Corporate Park, Robbinsville
  5. Domestic goose sp. x Canada Goose (hybrid) Anser sp. (Domestic type) x Branta canadensis
    # Count: 1
    Date:
    Observer: Katherine Tharrington
    Location: 212 Herrontown Road, Princeton, New Jersey, US (40.377, -74.633)
  6. Graylag x Canada Goose (hybrid) Anser anser x Branta canadensis
    # Count: 5
    Date:
    Observer: Joe Moore
    Location: Hamilton Veterans Park
  7. Brewster's Warbler (hybrid) Vermivora chrysoptera x cyanoptera (F1 hybrid)
    # Count: 1
    Date:
    Observer: Sam Vasen
    Location: Princeton Institute Woods & Charles Rogers Wildlife Refuge
  8. Barnacle x Cackling Goose (hybrid) Branta leucopsis x hutchinsii
    # Count: 3
    Date:
    Observer: JamEs ParRis
    Location: Hamilton Veterans Park
  9. Graylag x Swan Goose (hybrid) Anser anser x cygnoides
    # Count: 1
    Date:
    Observer: John Collins
    Location: Mercer Corporate Park, Robbinsville
  10. Lawrence's Warbler (hybrid) Vermivora chrysoptera x cyanoptera (F2 backcross)
    # Count: 1
    Date:
    Observer: William Anderson
    Location: Mercer Meadows

Additional Taxa (73)

  1. Carolina/Black-capped Chickadee Poecile carolinensis/atricapillus
    # Count: 1
    Date:
    Observer: David Padulo
    Location: Princeton Institute Woods & Charles Rogers Wildlife Refuge
  2. crow sp. Corvus sp. (crow sp.)
    # Count: 1
    Date:
    Observer: Kevin Gong
    Location: The Pennington School
  3. American/Fish Crow Corvus brachyrhynchos/ossifragus
    # Count: 2
    Date:
    Observer: Nancy Burns
    Location: Miry Run Natural Area
  4. Larus sp. Larus sp.
    # Count: 9
    Date:
    Observer: Bill Pitman
    Location: Mercer County Park
  5. goose sp. Anatidae (goose sp.)
    # Count: 15
    Date:
    Observer: Bill Pitman
    Location: Hamilton Veterans Park
  6. bird sp. Aves sp.
    # Count: 1
    Date:
    Observer: Vicki Schwartz
    Location: Baldpate Mountain--Ted Stiles Preserve
  7. finch sp. Fringillidae sp.
    # Count: 2
    Date:
    Observer: Hannah Suthers
    Location: Sommer Park, Featherbed Lane, Hopewell NJ
  8. gull sp. Larinae sp.
    # Count: 12
    Date:
    Observer: gretchen buxton
    Location: Abbott Marshlands--John A. Roebling Park
  9. passerine sp. Passeriformes sp.
    # Count: 1
    Date:
    Observer: Anagha R
    Location: Fiddler's Creek/Hollystone Preserve
  10. Accipiter sp. Accipiter sp.
    # Count: 1
    Date:
    Observer: Ben Hejna
    Location: Van Nest Wildlife Refuge
  11. duck sp. Anatidae (duck sp.)
    # Count: 2
    Date:
    Observer: Cari Welsh
    Location: 17 Theresa Drive, Trenton, New Jersey, US (40.289, -74.743)
  12. Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperii
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: 80 Hamilton Ave, Trenton US-NJ 40.21378, -74.75712
  13. new world sparrow sp. Passerellidae sp.
    # Count: 2
    Date:
    Observer: DsE McEn
    Location: Pole Farm (Mercer County Park NW)
  14. Domestic goose sp. (Domestic type) Anser sp. (Domestic type)
    # Count: 18
    Date:
    Observer: Old Sam Peabody
    Location: Hamilton Veterans Park
  15. blackbird sp. Icteridae sp.
    # Count: 5
    Date:
    Observer: Emma Price
    Location: Hancock Field (Bird from the road only)
  16. Cackling/Canada Goose Branta hutchinsii/canadensis
    # Count: 2
    Date:
    Observer: Anthony Robbi
    Location: Bridal wreath farm
  17. chickadee sp. Poecile sp.
    # Count: 1
    Date:
    Observer: Joe Melton
    Location: Princeton Institute Woods & Charles Rogers Wildlife Refuge
  18. Mallard/American Black Duck Anas platyrhynchos/rubripes
    # Count: 5
    Date:
    Observer: Anonymous eBirder
    Location: Delaware and Raritan Canal SP--Dyson Tract Area
  19. swallow sp. Hirundinidae sp.
    # Count: X
    Date:
    Observer: Ryan Griffin
    Location: Trenton Sewage Ponds
  20. Greater/Lesser Scaup Aythya marila/affinis
    # Count: X
    Date:
    Observer: James Cooper
    Location: John Fitch Way, Trenton US-NJ (40.2137,-74.7691)
  21. new world warbler sp. Parulidae sp.
    # Count: 2
    Date:
    Observer: Anagha R
    Location: St. Michael's Farm Preserve
  22. Catharus sp. Catharus sp.
    # Count: 2
    Date:
    Observer: WCAS Audubon
    Location: Hillside Farm Preserve
  23. Empidonax sp. Empidonax sp.
    # Count: 1
    Date:
    Observer: WCAS Audubon
    Location: Hillside Farm Preserve
  24. Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/traillii
    # Count: 5
    Date:
    Observer: Tong Mu
    Location: Princeton Institute Woods & Charles Rogers Wildlife Refuge
  25. shorebird sp. Charadriiformes sp.
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: Pole Farm (Mercer County Park NW)
  26. Buteo sp. Buteo sp.
    # Count: 1
    Date:
    Observer: David Dorini
    Location: Fiddler's Creek/Hollystone Preserve
  27. Lesser/Greater Yellowlegs Tringa flavipes/melanoleuca
    # Count: 8
    Date:
    Observer: Chris Brown
    Location: Abbott Marshlands--Rowan Lake/Watson Woods
  28. hawk sp. Accipitridae sp. (hawk sp.)
    # Count: 1
    Date:
    Observer: Old Sam Peabody
    Location: Cedar Ridge Preserve
  29. Downy/Hairy Woodpecker Dryobates pubescens/villosus
    # Count: 1
    Date:
    Observer: Esther Mills
    Location: 283 Mercer St, Princeton US-NJ 40.33760, -74.67239
  30. new world vulture sp. Cathartidae sp.
    # Count: 8
    Date:
    Observer: Pengning Chao
    Location: Pole Farm (Mercer County Park NW)
  31. Great/Double-crested Cormorant Phalacrocorax carbo/Nannopterum auritum
    # Count: 1
    Date:
    Observer: David Dorini
    Location: I-295 Scenic Overlook
  32. Snow/Ross's Goose Anser caerulescens/rossii
    # Count: 1
    Date:
    Observer: Chris Brown
    Location: Van Nest Wildlife Refuge
  33. Lincoln's/Swamp Sparrow Melospiza lincolnii/georgiana
    # Count: 1
    Date:
    Observer: Alex Wiebe
    Location: Hamilton Veterans Park
  34. peep sp. Calidris sp. (peep sp.)
    # Count: 10
    Date:
    Observer: David Dorini
    Location: Hamilton Veterans Park
  35. new world flycatcher sp. Tyrannidae sp.
    # Count: 1
    Date:
    Observer: Joseph Woodmansee
    Location: St. Michael's Farm Preserve
  36. tern sp. Sterninae sp.
    # Count: 2
    Date:
    Observer: Nancy Burns
    Location: Abbott Marshlands--John A. Roebling Park
  37. Spizella sp. Spizella sp.
    # Count: X
    Date:
    Observer: richard moran
    Location: Van Nest Wildlife Refuge
  38. merganser sp. Mergellus/Lophodytes/Mergus sp.
    # Count: 1
    Date:
    Observer: Bill Hewitt
    Location: Pole Farm (Mercer County Park NW)
  39. White-crowned/White-throated Sparrow Zonotrichia leucophrys/albicollis
    # Count: 2
    Date:
    Observer: Sarah G
    Location: The College of New Jersey
  40. waterfowl sp. Anatidae sp.
    # Count: 2
    Date:
    Observer: Susan Matson
    Location: 2103 Winton Ln, East Windsor US-NJ 40.27798, -74.53756
  41. owl sp. Strigiformes sp.
    # Count: 1
    Date:
    Observer: Alex Wiebe
    Location: Stony Brook-Millstone Watershed Preserve
  42. dabbling duck sp. Anatidae sp. (dabbling duck sp.)
    # Count: 1
    Date:
    Observer: David Bernstein
    Location: Abbott Marshlands--John A. Roebling Park
  43. House/Purple Finch Haemorhous mexicanus/purpureus
    # Count: 1
    Date:
    Observer: Pamela Kent
    Location: 72 Tee-Ar Pl, Princeton US-NJ 40.36088, -74.64962
  44. Lazuli/Indigo Bunting Passerina amoena/cyanea
    # Count: 1
    Date:
    Observer: Todd Fellenbaum
    Location: Fiddler's Creek/Hollystone Preserve
  45. Gray-cheeked/Bicknell's Thrush Catharus minimus/bicknelli
    # Count: 1
    Date:
    Observer: Sharyn Magee
    Location: McBurney Woods
  46. thrush sp. Turdidae sp.
    # Count: 1
    Date:
    Observer: Alex Wiebe
    Location: Princeton University campus
  47. Yellow-billed/Black-billed Cuckoo Coccyzus americanus/erythropthalmus
    # Count: 1
    Date:
    Observer: Vicki Schwartz
    Location: Pole Farm (Mercer County Park NW)
  48. woodpecker sp. Picidae sp.
    # Count: 1
    Date:
    Observer: Jim Austin-Cole
    Location: Pole Farm (Mercer County Park NW)
  49. gull/tern sp. Laridae sp.
    # Count: 1
    Date:
    Observer: Joseph Woodmansee
    Location: Pole Farm (Mercer County Park NW)
  50. cormorant sp. Phalacrocoracidae sp.
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: Delaware and Raritan Canal SP--Hamilton
  51. diurnal raptor sp. Accipitriformes/Falconiformes sp.
    # Count: 1
    Date:
    Observer: David Dorini
    Location: probable Mississippi Kite
  52. Golden-winged/Blue-winged Warbler Vermivora chrysoptera/cyanoptera
    # Count: 1
    Date:
    Observer: Alex Wiebe
    Location: Princeton Institute Woods & Charles Rogers Wildlife Refuge
  53. heron sp. Ardeidae sp.
    # Count: 1
    Date:
    Observer: David Dorini
    Location: culdesac
  54. white egret sp. Egretta/Bubulcus/Ardea sp.
    # Count: 1
    Date:
    Observer: Amey Zhang
    Location: 400–458 Buchanan Ave, Hamilton US-NJ 40.19474, -74.72970
  55. King/Clapper Rail Rallus elegans/crepitans
    # Count: 1
    Date:
    Observer: David Dorini NFC Station
    Location: culdesac
  56. falcon sp. Falco sp.
    # Count: 1
    Date:
    Observer: Ella Pennington
    Location: 211 Blackwell Road, Pennington, New Jersey, US (40.325, -74.754)
  57. Aythya sp. Aythya sp.
    # Count: 15
    Date:
    Observer: David Dorini
    Location: I-295 Scenic Overlook
  58. swan sp. Cygnus sp.
    # Count: 2
    Date:
    Observer: Anonymous eBirder
    Location: Hamilton Square Park and Personal Location
  59. Bay-breasted/Blackpoll Warbler Setophaga castanea/striata
    # Count: 1
    Date:
    Observer: Maria Smith
    Location: Loveless Nature Preserve
  60. hummingbird sp. Trochilidae sp.
    # Count: 3
    Date:
    Observer: Dennis Edgar
    Location: 953 Great Road East, Princeton, New Jersey, US (40.369, -74.694)
  61. Louisiana/Northern Waterthrush Parkesia motacilla/noveboracensis
    # Count: 1
    Date:
    Observer: Dennis Edgar
    Location: Tenacre area
  62. large rail sp. Rallus sp. (large Rallus sp.)
    # Count: 1
    Date:
    Observer: Chris Brown NFC Station
    Location: CB NFC Station
  63. small falcon sp. Falco sp. (small falcon sp.)
    # Count: 1
    Date:
    Observer: Dennis Edgar
    Location: 953 Great Road, Princeton, New Jersey, US (40.37, -74.694)
  64. Common/Red-breasted Merganser Mergus merganser/serrator
    # Count: 1
    Date:
    Observer: Maria Smith
    Location: Rosedale Park
  65. wren sp. Troglodytidae sp.
    # Count: 1
    Date:
    Observer: Maia Ginsburg
    Location: Philip Dr, Princeton US-NJ (40.3540,-74.6334)
  66. loon sp. Gavia sp.
    # Count: 1
    Date:
    Observer: Sandy McNicol
    Location: Baldpate Mountain--Ted Stiles Preserve
  67. nuthatch sp. Sitta sp.
    # Count: 2
    Date:
    Observer: David Dorini
    Location: Princeton Institute Woods & Charles Rogers Wildlife Refuge
  68. swift sp. Apodidae sp.
    # Count: 1
    Date:
    Observer: Sarah rackowski
    Location: Princeton high school
  69. new world oriole sp. Icterus sp.
    # Count: 1
    Date:
    Observer: David Dorini
    Location: Mountain Lakes Park
  70. vireo sp. Vireo sp.
    # Count: 1
    Date:
    Observer: David Dorini
    Location: The Wilberforce School
  71. Nelson's/Saltmarsh Sparrow (Sharp-tailed Sparrow) Ammospiza nelsoni/caudacuta
    # Count: 1
    Date:
    Observer: Joe Melton
    Location: Mercer County Park
  72. Philadelphia/Warbling Vireo Vireo philadelphicus/gilvus
    # Count: 1
    Date:
    Observer: Mark Harris
    Location: Millstone River Impoundment
  73. rail/crake sp. Rallidae sp. (rail/crake sp.)
    # Count: 1
    Date:
    Observer: Bill Hunt
    Location: Princeton Institute Woods & Charles Rogers Wildlife Refuge