Menu

Change Region

Change Region

Assabet River NWR

Directions Map

Explore...

Bird List

Updated ~14 seconds ago
191 All Years 49 This Year 2025 43 This Month Mar 2025
Last Observed First Observed High Count

Custom Time Period

Change Time Period

Sort by

  1. Species Name
    Count
    Date
    Observer
    Location

Native and Naturalized (191)

  1. Canada Goose Branta canadensis
    # Count: 10
    Date:
    Observer: Anonymous eBirder
    Location: Assabet River NWR
  2. Mallard Anas platyrhynchos
    # Count: 4
    Date:
    Observer: Anonymous eBirder
    Location: Assabet River NWR
  3. Ring-necked Duck Aythya collaris
    # Count: 75
    Date:
    Observer: Anonymous eBirder
    Location: Assabet River NWR
  4. Common Merganser Mergus merganser
    # Count: 9
    Date:
    Observer: Anonymous eBirder
    Location: Assabet River NWR
  5. Pileated Woodpecker Dryocopus pileatus
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: Assabet River NWR
  6. Black-capped Chickadee Poecile atricapillus
    # Count: 3
    Date:
    Observer: Anonymous eBirder
    Location: Assabet River NWR
  7. White-breasted Nuthatch Sitta carolinensis
    # Count: 2
    Date:
    Observer: Anonymous eBirder
    Location: Assabet River NWR
  8. Red-winged Blackbird Agelaius phoeniceus
    # Count: 2
    Date:
    Observer: Anonymous eBirder
    Location: Assabet River NWR
  9. Wood Duck Aix sponsa
    # Count: 1
    Date:
    Observer: Matt Watson
    Location: Assabet River NWR
  10. Hooded Merganser Lophodytes cucullatus
    # Count: 2
    Date:
    Observer: Matt Watson
    Location: Assabet River NWR
  11. Barred Owl Strix varia
    # Count: 1
    Date:
    Observer: Matt Watson
    Location: Assabet River NWR
  12. Red-bellied Woodpecker Melanerpes carolinus
    # Count: 5
    Date:
    Observer: Matt Watson
    Location: Assabet River NWR
  13. Downy Woodpecker Dryobates pubescens
    # Count: 2
    Date:
    Observer: Matt Watson
    Location: Assabet River NWR
  14. Hairy Woodpecker Dryobates villosus
    # Count: 1
    Date:
    Observer: Matt Watson
    Location: Assabet River NWR
  15. Blue Jay Cyanocitta cristata
    # Count: 10
    Date:
    Observer: Matt Watson
    Location: Assabet River NWR
  16. American Crow Corvus brachyrhynchos
    # Count: 2
    Date:
    Observer: Matt Watson
    Location: Assabet River NWR
  17. Fish Crow Corvus ossifragus
    # Count: 1
    Date:
    Observer: Matt Watson
    Location: Assabet River NWR
  18. Tufted Titmouse Baeolophus bicolor
    # Count: 2
    Date:
    Observer: Matt Watson
    Location: Assabet River NWR
  19. Red-breasted Nuthatch Sitta canadensis
    # Count: 2
    Date:
    Observer: Matt Watson
    Location: Assabet River NWR
  20. Brown Creeper Certhia americana
    # Count: 1
    Date:
    Observer: Matt Watson
    Location: Assabet River NWR
  21. Eastern Bluebird Sialia sialis
    # Count: 2
    Date:
    Observer: Matt Watson
    Location: Assabet River NWR
  22. American Robin Turdus migratorius
    # Count: 1
    Date:
    Observer: Matt Watson
    Location: Assabet River NWR
  23. American Goldfinch Spinus tristis
    # Count: 2
    Date:
    Observer: Matt Watson
    Location: Assabet River NWR
  24. Dark-eyed Junco Junco hyemalis
    # Count: 6
    Date:
    Observer: Matt Watson
    Location: Assabet River NWR
  25. Song Sparrow Melospiza melodia
    # Count: 1
    Date:
    Observer: Matt Watson
    Location: Assabet River NWR
  26. Common Grackle Quiscalus quiscula
    # Count: 8
    Date:
    Observer: Matt Watson
    Location: Assabet River NWR
  27. Northern Cardinal Cardinalis cardinalis
    # Count: 3
    Date:
    Observer: Matt Watson
    Location: Assabet River NWR
  28. Bufflehead Bucephala albeola
    # Count: 2
    Date:
    Observer: Brewer B.
    Location: Assabet River NWR
  29. Mourning Dove Zenaida macroura
    # Count: 2
    Date:
    Observer: Brewer B.
    Location: Assabet River NWR
  30. Great Blue Heron Ardea herodias
    # Count: 1
    Date:
    Observer: Brewer B.
    Location: Assabet River NWR
  31. Sharp-shinned Hawk Accipiter striatus
    # Count: 1
    Date:
    Observer: Brewer B.
    Location: Assabet River NWR
  32. Red-shouldered Hawk Buteo lineatus
    # Count: 1
    Date:
    Observer: Brewer B.
    Location: Assabet River NWR
  33. Red-tailed Hawk Buteo jamaicensis
    # Count: 1
    Date:
    Observer: Brewer B.
    Location: Assabet River NWR
  34. Northern Flicker Colaptes auratus
    # Count: 1
    Date:
    Observer: Brewer B.
    Location: Assabet River NWR
  35. Carolina Wren Thryothorus ludovicianus
    # Count: 1
    Date:
    Observer: Brewer B.
    Location: Assabet River NWR
  36. White-throated Sparrow Zonotrichia albicollis
    # Count: 2
    Date:
    Observer: Brewer B.
    Location: Assabet River NWR
  37. American Woodcock Scolopax minor
    # Count: 2
    Date:
    Observer: Ron Schlegel
    Location: Assabet River NWR
  38. Green-winged Teal Anas crecca
    # Count: 4
    Date:
    Observer: Dan Trippe
    Location: Assabet River NWR
  39. Turkey Vulture Cathartes aura
    # Count: 1
    Date:
    Observer: Dan Trippe
    Location: Assabet River NWR
  40. Wild Turkey Meleagris gallopavo
    # Count: 1
    Date:
    Observer: Laura Lane
    Location: Assabet River NWR
  41. Great Horned Owl Bubo virginianus
    # Count: 1
    Date:
    Observer: Sarah Randall
    Location: Assabet River NWR
  42. House Sparrow Passer domesticus
    # Count: 1
    Date:
    Observer: Sarah Randall
    Location: Assabet River NWR
  43. House Finch Haemorhous mexicanus
    # Count: 3
    Date:
    Observer: Sarah Randall
    Location: Assabet River NWR
  44. Common Raven Corvus corax
    # Count: 1
    Date:
    Observer: Matt Zucconi
    Location: Assabet River NWR
  45. Golden-crowned Kinglet Regulus satrapa
    # Count: 3
    Date:
    Observer: Matt Zucconi
    Location: Assabet River NWR
  46. Winter Wren Troglodytes hiemalis
    # Count: 1
    Date:
    Observer: Matt Zucconi
    Location: Assabet River NWR
  47. Yellow-bellied Sapsucker Sphyrapicus varius
    # Count: 1
    Date:
    Observer: will malan
    Location: Assabet River NWR
  48. Field Sparrow Spizella pusilla
    # Count: 1
    Date:
    Observer: Bette Robo
    Location: Assabet River NWR
  49. Swamp Sparrow Melospiza georgiana
    # Count: 2
    Date:
    Observer: Fred K
    Location: Assabet River NWR
  50. American Black Duck Anas rubripes
    # Count: 1
    Date:
    Observer: Janet Kovner
    Location: Assabet River NWR
  51. Belted Kingfisher Megaceryle alcyon
    # Count: 1
    Date:
    Observer: Janet Kovner
    Location: Assabet River NWR
  52. Killdeer Charadrius vociferus
    # Count: 2
    Date:
    Observer: Laura Lane
    Location: Assabet River NWR
  53. American Tree Sparrow Spizelloides arborea
    # Count: 4
    Date:
    Observer: Laura Lane
    Location: Assabet River NWR
  54. Northern Harrier Circus hudsonius
    # Count: 1
    Date:
    Observer: Mike Gooley
    Location: Assabet River NWR
  55. Rusty Blackbird Euphagus carolinus
    # Count: 5
    Date:
    Observer: Mike Gooley
    Location: Assabet River NWR
  56. Cooper's Hawk Astur cooperii
    # Count: 1
    Date:
    Observer: Sam Miller
    Location: Assabet River NWR
  57. Fox Sparrow Passerella iliaca
    # Count: 5
    Date:
    Observer: Sam Miller
    Location: Assabet River NWR
  58. Palm Warbler Setophaga palmarum
    # Count: 1
    Date:
    Observer: Sam Miller
    Location: Assabet River NWR
  59. Hermit Thrush Catharus guttatus
    # Count: 1
    Date:
    Observer: Matt Watson
    Location: Assabet River NWR
  60. Cedar Waxwing Bombycilla cedrorum
    # Count: 2
    Date:
    Observer: Deirdre Trollman
    Location: Assabet River NWR
  61. Ruby-crowned Kinglet Corthylio calendula
    # Count: 1
    Date:
    Observer: Marvin Guiles
    Location: Assabet River NWR
  62. Chipping Sparrow Spizella passerina
    # Count: 1
    Date:
    Observer: Ben Peters
    Location: Assabet River NWR
  63. Savannah Sparrow Passerculus sandwichensis
    # Count: 1
    Date:
    Observer: Ben Peters
    Location: Assabet River NWR
  64. Yellow-rumped Warbler Setophaga coronata
    # Count: 2
    Date:
    Observer: Marvin Guiles
    Location: Assabet River NWR
  65. Eastern Phoebe Sayornis phoebe
    # Count: 1
    Date:
    Observer: Mike Gooley
    Location: Assabet River NWR
  66. Purple Finch Haemorhous purpureus
    # Count: 1
    Date:
    Observer: Robert Thaenert
    Location: Assabet River NWR
  67. Pine Siskin Spinus pinus
    # Count: 1
    Date:
    Observer: Robert Thaenert
    Location: Assabet River NWR
  68. Blue-headed Vireo Vireo solitarius
    # Count: 1
    Date:
    Observer: Robert Thaenert
    Location: Assabet River NWR
  69. Eastern Towhee Pipilo erythrophthalmus
    # Count: 1
    Date:
    Observer: Robert Thaenert
    Location: Assabet River NWR
  70. Brown-headed Cowbird Molothrus ater
    # Count: 1
    Date:
    Observer: Robert Thaenert
    Location: Assabet River NWR
  71. Magnolia Warbler Setophaga magnolia
    # Count: 1
    Date:
    Observer: Robert Thaenert
    Location: Assabet River NWR
  72. Double-crested Cormorant Nannopterum auritum
    # Count: 1
    Date:
    Observer: will malan
    Location: Assabet River NWR
  73. Great Egret Ardea alba
    # Count: 1
    Date:
    Observer: Dan Trippe
    Location: Assabet River NWR
  74. Common Yellowthroat Geothlypis trichas
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: Assabet River NWR
  75. Rock Pigeon Columba livia
    # Count: 1
    Date:
    Observer: Robert Thaenert
    Location: Assabet River NWR
  76. Broad-winged Hawk Buteo platypterus
    # Count: 1
    Date:
    Observer: Robert Thaenert
    Location: Assabet River NWR
  77. Gray Catbird Dumetella carolinensis
    # Count: 1
    Date:
    Observer: Robert Thaenert
    Location: Assabet River NWR
  78. Baltimore Oriole Icterus galbula
    # Count: 1
    Date:
    Observer: Marvin Guiles
    Location: Assabet River NWR
  79. Rose-breasted Grosbeak Pheucticus ludovicianus
    # Count: 1
    Date:
    Observer: Marvin Guiles
    Location: Assabet River NWR
  80. Northern Mockingbird Mimus polyglottos
    # Count: 1
    Date:
    Observer: Dan Trippe
    Location: Assabet River NWR
  81. Pine Warbler Setophaga pinus
    # Count: 1
    Date:
    Observer: Mael Glon
    Location: Assabet River NWR
  82. Northern House Wren Troglodytes aedon
    # Count: 1
    Date:
    Observer: susan richmond
    Location: Assabet River NWR
  83. Eastern Wood-Pewee Contopus virens
    # Count: 1
    Date:
    Observer: Eric Meier
    Location: Assabet River NWR
  84. Red-eyed Vireo Vireo olivaceus
    # Count: 1
    Date:
    Observer: Eric Meier
    Location: Assabet River NWR
  85. Swainson's Thrush Catharus ustulatus
    # Count: 2
    Date:
    Observer: Eric Meier
    Location: Assabet River NWR
  86. Black-and-white Warbler Mniotilta varia
    # Count: 3
    Date:
    Observer: Matt Watson
    Location: Assabet River NWR
  87. Northern Parula Setophaga americana
    # Count: 1
    Date:
    Observer: Matt Watson
    Location: Assabet River NWR
  88. Mute Swan Cygnus olor
    # Count: 1
    Date:
    Observer: David Swain
    Location: Assabet River NWR
  89. Blackpoll Warbler Setophaga striata
    # Count: 1
    Date:
    Observer: David Swain
    Location: Assabet River NWR
  90. American Redstart Setophaga ruticilla
    # Count: 4
    Date:
    Observer: Jeffrey Ritterson
    Location: Assabet River NWR
  91. Black-throated Green Warbler Setophaga virens
    # Count: 1
    Date:
    Observer: Jeffrey Ritterson
    Location: Assabet River NWR
  92. Osprey Pandion haliaetus
    # Count: 1
    Date:
    Observer: Bogdan Matula
    Location: Assabet River NWR
  93. Scarlet Tanager Piranga olivacea
    # Count: 1
    Date:
    Observer: Mike Gooley
    Location: Assabet River NWR
  94. Yellow-throated Vireo Vireo flavifrons
    # Count: 1
    Date:
    Observer: Matt Watson
    Location: Assabet River NWR
  95. Nashville Warbler Leiothlypis ruficapilla
    # Count: 1
    Date:
    Observer: Matt Watson
    Location: Assabet River NWR
  96. Olive-sided Flycatcher Contopus cooperi
    # Count: 1
    Date:
    Observer: Robert Kitchen
    Location: Assabet River NWR
  97. Tree Swallow Tachycineta bicolor
    # Count: 2
    Date:
    Observer: Dan Trippe
    Location: Assabet River NWR
  98. Barn Swallow Hirundo rustica
    # Count: 10
    Date:
    Observer: Nathan Thornley
    Location: Assabet River NWR
  99. Ruby-throated Hummingbird Archilochus colubris
    # Count: 3
    Date:
    Observer: Sam Miller
    Location: Assabet River NWR
  100. Great Crested Flycatcher Myiarchus crinitus
    # Count: 1
    Date:
    Observer: Sam Miller
    Location: Assabet River NWR
  101. Chestnut-sided Warbler Setophaga pensylvanica
    # Count: 1
    Date:
    Observer: Sam Miller
    Location: Assabet River NWR
  102. Chimney Swift Chaetura pelagica
    # Count: 1
    Date:
    Observer: David Swain
    Location: Assabet River NWR
  103. Northern Rough-winged Swallow Stelgidopteryx serripennis
    # Count: 1
    Date:
    Observer: David Swain
    Location: Assabet River NWR
  104. Eastern Kingbird Tyrannus tyrannus
    # Count: 2
    Date:
    Observer: Michael Giaquinto
    Location: Assabet River NWR
  105. Green Heron Butorides virescens
    # Count: 2
    Date:
    Observer: Sam Miller
    Location: Assabet River NWR
  106. Yellow Warbler Setophaga petechia
    # Count: 2
    Date:
    Observer: Sam Miller
    Location: Assabet River NWR
  107. European Starling Sturnus vulgaris
    # Count: 2
    Date:
    Observer: Marie Billiel
    Location: Assabet River NWR
  108. Solitary Sandpiper Tringa solitaria
    # Count: 1
    Date:
    Observer: Matt Watson
    Location: Assabet River NWR
  109. Northern Waterthrush Parkesia noveboracensis
    # Count: 1
    Date:
    Observer: Matt Watson
    Location: Assabet River NWR
  110. Blue-gray Gnatcatcher Polioptila caerulea
    # Count: 1
    Date:
    Observer: Matt Watson
    Location: Assabet River NWR
  111. Little Blue Heron Egretta caerulea
    # Count: 1
    Date:
    Observer: Sam Miller
    Location: Assabet River NWR
  112. Veery Catharus fuscescens
    # Count: 1
    Date:
    Observer: Adam Gerhart
    Location: Assabet River NWR
  113. Ovenbird Seiurus aurocapilla
    # Count: 1
    Date:
    Observer: Sam Miller
    Location: Assabet River NWR
  114. Merlin Falco columbarius
    # Count: 1
    Date:
    Observer: Brewer B.
    Location: Assabet River NWR
  115. Blue-winged Warbler Vermivora cyanoptera
    # Count: 2
    Date:
    Observer: Matt Watson
    Location: Assabet River NWR
  116. Cape May Warbler Setophaga tigrina
    # Count: 1
    Date:
    Observer: Matt Watson
    Location: Assabet River NWR
  117. Common Nighthawk Chordeiles minor
    # Count: 2
    Date:
    Observer: Sam Miller
    Location: Assabet River NWR
  118. Cliff Swallow Petrochelidon pyrrhonota
    # Count: 5
    Date:
    Observer: Matt Watson
    Location: Assabet River NWR
  119. Indigo Bunting Passerina cyanea
    # Count: 1
    Date:
    Observer: Dan Trippe
    Location: Assabet River NWR
  120. Virginia Rail Rallus limicola
    # Count: 1
    Date:
    Observer: Robert Thaenert
    Location: Assabet River NWR
  121. Bank Swallow Riparia riparia
    # Count: 7
    Date:
    Observer: Nadia Wilkins
    Location: Assabet River NWR
  122. Warbling Vireo Vireo gilvus
    # Count: 1
    Date:
    Observer: Robert Thaenert
    Location: Assabet River NWR
  123. Black-crowned Night Heron Nycticorax nycticorax
    # Count: 1
    Date:
    Observer: Robert Thaenert
    Location: Assabet River NWR
  124. Spotted Sandpiper Actitis macularius
    # Count: 1
    Date:
    Observer: Bryan Guski
    Location: Assabet River NWR
  125. Wood Thrush Hylocichla mustelina
    # Count: 1
    Date:
    Observer: will malan
    Location: Assabet River NWR
  126. Willow Flycatcher Empidonax traillii
    # Count: 2
    Date:
    Observer: Owen Finnegan
    Location: Assabet River NWR
  127. Brown Thrasher Toxostoma rufum
    # Count: 1
    Date:
    Observer: Robert Thaenert
    Location: Assabet River NWR
  128. Bobolink Dolichonyx oryzivorus
    # Count: 1
    Date:
    Observer: Robert Thaenert
    Location: Assabet River NWR
  129. Orchard Oriole Icterus spurius
    # Count: 1
    Date:
    Observer: Robert Thaenert
    Location: Assabet River NWR
  130. Prairie Warbler Setophaga discolor
    # Count: 1
    Date:
    Observer: Tom Perls
    Location: Assabet River NWR
  131. Red Crossbill Loxia curvirostra
    # Count: 1
    Date:
    Observer: Scott Wilson
    Location: Assabet River NWR
  132. Louisiana Waterthrush Parkesia motacilla
    # Count: 2
    Date:
    Observer: Scott Wilson
    Location: Assabet River NWR
  133. Black-billed Cuckoo Coccyzus erythropthalmus
    # Count: 2
    Date:
    Observer: Sam Miller
    Location: Assabet River NWR
  134. Least Flycatcher Empidonax minimus
    # Count: 1
    Date:
    Observer: Brewer B.
    Location: Assabet River NWR
  135. Canada Warbler Cardellina canadensis
    # Count: 4
    Date:
    Observer: Peg von Rohr
    Location: Assabet River NWR
  136. Wilson's Warbler Cardellina pusilla
    # Count: 1
    Date:
    Observer: delia moore
    Location: Assabet River NWR
  137. Black-throated Blue Warbler Setophaga caerulescens
    # Count: 1
    Date:
    Observer: Mace Mayor
    Location: Assabet River NWR
  138. Yellow-billed Cuckoo Coccyzus americanus
    # Count: 1
    Date:
    Observer: Brewer B.
    Location: Assabet River NWR
  139. Blackburnian Warbler Setophaga fusca
    # Count: 1
    Date:
    Observer: Jeffrey Ritterson
    Location: Assabet River NWR
  140. Common Loon Gavia immer
    # Count: 1
    Date:
    Observer: Peg von Rohr
    Location: Assabet River NWR
  141. American Kestrel Falco sparverius
    # Count: 1
    Date:
    Observer: Matt Watson
    Location: Assabet River NWR
  142. Bald Eagle Haliaeetus leucocephalus
    # Count: 1
    Date:
    Observer: Robert Thaenert
    Location: Assabet River NWR
  143. Gadwall Mareca strepera
    # Count: 1
    Date:
    Observer: Cristina Hartshorn
    Location: Assabet River NWR
  144. Ring-billed Gull Larus delawarensis
    # Count: 2
    Date:
    Observer: Timothy Spahr
    Location: Assabet River NWR
  145. American Wigeon Mareca americana
    # Count: 1
    Date:
    Observer: Laura Lane
    Location: Assabet River NWR
  146. Common Goldeneye Bucephala clangula
    # Count: 1
    Date:
    Observer: Brewer B.
    Location: Assabet River NWR
  147. Blue-winged Teal Spatula discors
    # Count: 4
    Date:
    Observer: Douglas Clendaniel
    Location: Assabet River NWR
  148. Pied-billed Grebe Podilymbus podiceps
    # Count: 1
    Date:
    Observer: Douglas Clendaniel
    Location: Assabet River NWR
  149. Lincoln's Sparrow Melospiza lincolnii
    # Count: 2
    Date:
    Observer: Joan LeBel
    Location: Assabet River NWR
  150. Dickcissel Spiza americana
    # Count: 1
    Date:
    Observer: David Swain
    Location: Assabet River NWR
  151. Tennessee Warbler Leiothlypis peregrina
    # Count: 2
    Date:
    Observer: Mike Gooley
    Location: Assabet River NWR
  152. Bay-breasted Warbler Setophaga castanea
    # Count: 1
    Date:
    Observer: Matt Watson
    Location: Assabet River NWR
  153. American Bittern Botaurus lentiginosus
    # Count: 1
    Date:
    Observer: Jon Skinner
    Location: Assabet River NWR
  154. American Herring Gull Larus smithsonianus
    # Count: 1
    Date:
    Observer: Joan LeBel
    Location: Assabet River NWR
  155. Lesser Scaup Aythya affinis
    # Count: 2
    Date:
    Observer: Nick Tepper
    Location: Assabet River NWR
  156. Sandhill Crane Antigone canadensis
    # Count: 1
    Date:
    Observer: Michael Giaquinto
    Location: Assabet River NWR
  157. Horned Lark Eremophila alpestris
    # Count: 1
    Date:
    Observer: Nick Tepper
    Location: Assabet River NWR
  158. Marsh Wren Cistothorus palustris
    # Count: 1
    Date:
    Observer: Nick Tepper
    Location: Assabet River NWR
  159. Peregrine Falcon Falco peregrinus
    # Count: 1
    Date:
    Observer: Michael Giaquinto
    Location: Assabet River NWR
  160. Gray-cheeked Thrush Catharus minimus
    # Count: 3
    Date:
    Observer: Nick Tepper
    Location: Assabet River NWR
  161. Mourning Warbler Geothlypis philadelphia
    # Count: 1
    Date:
    Observer: Nick Tepper
    Location: Assabet River NWR
  162. Yellow-bellied Flycatcher Empidonax flaviventris
    # Count: 1
    Date:
    Observer: Michael Giaquinto
    Location: Assabet River NWR
  163. Red-breasted Merganser Mergus serrator
    # Count: 1
    Date:
    Observer: Tim Sackton
    Location: Assabet River NWR
  164. Northern Pintail Anas acuta
    # Count: 1
    Date:
    Observer: Nick Tepper
    Location: Assabet River NWR
  165. Redpoll Acanthis flammea
    # Count: 12
    Date:
    Observer: Peg von Rohr
    Location: Assabet River NWR
  166. Northern Saw-whet Owl Aegolius acadicus
    # Count: 2
    Date:
    Observer: Nick Tepper
    Location: Assabet River NWR
  167. White-winged Crossbill Loxia leucoptera
    # Count: 1
    Date:
    Observer: Jonathan Mott
    Location: Assabet River NWR
  168. Evening Grosbeak Coccothraustes vespertinus
    # Count: 2
    Date:
    Observer: Nick Tepper
    Location: Assabet River NWR
  169. Least Sandpiper Calidris minutilla
    # Count: 2
    Date:
    Observer: Nick Tepper
    Location: Assabet River NWR
  170. Semipalmated Sandpiper Calidris pusilla
    # Count: 1
    Date:
    Observer: Nick Tepper
    Location: Assabet River NWR
  171. Philadelphia Vireo Vireo philadelphicus
    # Count: 1
    Date:
    Observer: Will Freedberg
    Location: Assabet River NWR
  172. Sora Porzana carolina
    # Count: 1
    Date:
    Observer: Nick Tepper
    Location: Assabet River NWR
  173. Acadian Flycatcher Empidonax virescens
    # Count: 1
    Date:
    Observer: Nick Tepper
    Location: Assabet River NWR
  174. Alder Flycatcher Empidonax alnorum
    # Count: 1
    Date:
    Observer: Nick Tepper
    Location: Assabet River NWR
  175. White-crowned Sparrow Zonotrichia leucophrys
    # Count: 1
    Date:
    Observer: Bruce Black
    Location: Assabet River NWR
  176. Orange-crowned Warbler Leiothlypis celata
    # Count: 1
    Date:
    Observer: Nick Tepper
    Location: Assabet River NWR
  177. Wilson's Snipe Gallinago delicata
    # Count: 1
    Date:
    Observer: Nick Tepper
    Location: Assabet River NWR
  178. American Pipit Anthus rubescens
    # Count: 1
    Date:
    Observer: Nick Tepper
    Location: Assabet River NWR
  179. Connecticut Warbler Oporornis agilis
    # Count: 1
    Date:
    Observer: Chris Martone
    Location: Assabet River NWR
  180. Great Black-backed Gull Larus marinus
    # Count: 1
    Date:
    Observer: Nick Tepper
    Location: Assabet River NWR
  181. American Goshawk Astur atricapillus
    # Count: 1
    Date:
    Observer: Joel Zaborowski
    Location: Assabet River NWR
  182. Eastern Screech-Owl Megascops asio
    # Count: 2
    Date:
    Observer: Melani Sleder
    Location: Assabet River NWR
  183. Greater Yellowlegs Tringa melanoleuca
    # Count: 7
    Date:
    Observer: Mike Gooley
    Location: Assabet River NWR
  184. Ruddy Duck Oxyura jamaicensis
    # Count: 1
    Date:
    Observer: Mike Gooley
    Location: Assabet River NWR
  185. Red-headed Woodpecker Melanerpes erythrocephalus
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: Assabet River NWR
  186. Eastern Whip-poor-will Antrostomus vociferus
    # Count: 1
    Date:
    Observer: Mark Clegg
    Location: Assabet River NWR
  187. American Coot Fulica americana
    # Count: 1
    Date:
    Observer: Mark Clegg
    Location: Assabet River NWR
  188. Grasshopper Sparrow Ammodramus savannarum
    # Count: 1
    Date:
    Observer: Mark Clegg
    Location: Assabet River NWR
  189. Kentucky Warbler Geothlypis formosa
    # Count: 1
    Date:
    Observer: Timothy Spahr
    Location: Assabet River NWR
  190. Ruffed Grouse Bonasa umbellus
    # Count: 1
    Date:
    Observer: Timothy Skillin
    Location: Assabet River NWR
  191. Barrow's Goldeneye Bucephala islandica
    # Count: 2
    Date:
    Observer: Kirk Marshall
    Location: Assabet River NWR

Exotic: Escapee (2)

  1. Muscovy Duck Cairina moschata
    # Count: 3
    Date:
    Observer: Carole Hohl
    Location: Assabet River NWR
  2. Ring-necked Pheasant Phasianus colchicus
    # Count: 1
    Date:
    Observer: Jennifer Emerson
    Location: Assabet River NWR

Hybrids (3)

  1. Mallard x American Black Duck (hybrid) Anas platyrhynchos x rubripes
    # Count: 1
    Date:
    Observer: Richard Sirull
    Location: Assabet River NWR
  2. Domestic goose sp. x Canada Goose (hybrid) Anser sp. (Domestic type) x Branta canadensis
    # Count: 1
    Date:
    Observer: Jacquelyn Pascucci
    Location: Assabet River NWR
  3. Spotted x Eastern Towhee (hybrid) Pipilo maculatus x erythrophthalmus
    # Count: 1
    Date:
    Observer: Nick Tepper
    Location: Assabet River NWR

Additional Taxa (34)

  1. hawk sp. Accipitridae sp. (hawk sp.)
    # Count: 2
    Date:
    Observer: Brennan Guldner
    Location: Assabet River NWR
  2. gull sp. Larinae sp.
    # Count: 1
    Date:
    Observer: Mike Gooley
    Location: Assabet River NWR
  3. blackbird sp. Icteridae sp.
    # Count: 2
    Date:
    Observer: Mike Gooley
    Location: Assabet River NWR
  4. new world warbler sp. Parulidae sp.
    # Count: 1
    Date:
    Observer: Mike Gooley
    Location: Assabet River NWR
  5. Accipitrine hawk sp. (former Accipiter sp.) Aerospiza/Tachyspiza/Accipiter/Astur sp.
    # Count: 1
    Date:
    Observer: Dan Trippe
    Location: Assabet River NWR
  6. new world sparrow sp. Passerellidae sp.
    # Count: 1
    Date:
    Observer: susan richmond
    Location: Assabet River NWR
  7. falcon sp. Falco sp.
    # Count: 1
    Date:
    Observer: Mike Gooley
    Location: Assabet River NWR
  8. duck sp. Anatidae (duck sp.)
    # Count: 2
    Date:
    Observer: Dan Trippe
    Location: Assabet River NWR
  9. Empidonax sp. Empidonax sp.
    # Count: 1
    Date:
    Observer: Karen Clifford
    Location: Assabet River NWR
  10. Sharp-shinned/Cooper's Hawk Accipiter striatus/Astur cooperii
    # Count: 1
    Date:
    Observer: Malia Wenny
    Location: Assabet River NWR
  11. Yellow-billed/Black-billed Cuckoo Coccyzus americanus/erythropthalmus
    # Count: 1
    Date:
    Observer: Matt Kaiser
    Location: Assabet River NWR
  12. Downy/Hairy Woodpecker Dryobates pubescens/villosus
    # Count: 3
    Date:
    Observer: Bay State Birds
    Location: Assabet River NWR
  13. bird sp. Aves sp.
    # Count: 1
    Date:
    Observer: Valerie Burdette
    Location: Assabet River NWR
  14. Mallard/American Black Duck Anas platyrhynchos/rubripes
    # Count: 2
    Date:
    Observer: Rick Horlick
    Location: Assabet River NWR
  15. owl sp. Strigiformes sp.
    # Count: 1
    Date:
    Observer: Cristina Hartshorn
    Location: Assabet River NWR
  16. passerine sp. Passeriformes sp.
    # Count: 1
    Date:
    Observer: Mike Gooley
    Location: Assabet River NWR
  17. woodpecker sp. Picidae sp.
    # Count: 2
    Date:
    Observer: Dan Trippe
    Location: Assabet River NWR
  18. new world vulture sp. Cathartidae sp.
    # Count: 1
    Date:
    Observer: Ellie Leigh-Manuell
    Location: Assabet River NWR
  19. Buteo sp. Buteo sp.
    # Count: 1
    Date:
    Observer: Peg von Rohr
    Location: Assabet River NWR
  20. House/Purple Finch Haemorhous mexicanus/purpureus
    # Count: 1
    Date:
    Observer: Kathy Spellman
    Location: Assabet River NWR
  21. swallow sp. Hirundinidae sp.
    # Count: 1
    Date:
    Observer: Scott Dresser
    Location: Assabet River NWR
  22. finch sp. Fringillidae sp.
    # Count: 1
    Date:
    Observer: Jon Skinner
    Location: Assabet River NWR
  23. Catharus sp. Catharus sp.
    # Count: 2
    Date:
    Observer: Jon Skinner
    Location: Assabet River NWR
  24. new world flycatcher sp. Tyrannidae sp.
    # Count: 1
    Date:
    Observer: Valerie Burdette
    Location: Assabet River NWR
  25. vireo sp. Vireo sp.
    # Count: 1
    Date:
    Observer: Dan Trippe
    Location: Assabet River NWR
  26. crow sp. Corvus sp. (crow sp.)
    # Count: 2
    Date:
    Observer: Mike Gooley
    Location: Assabet River NWR
  27. Gray-cheeked/Bicknell's Thrush Catharus minimus/bicknelli
    # Count: 1
    Date:
    Observer: Nick Tepper
    Location: Assabet River NWR
  28. Setophaga sp. Setophaga sp.
    # Count: 2
    Date:
    Observer: Mike Gooley
    Location: Assabet River NWR
  29. Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/traillii
    # Count: 1
    Date:
    Observer: Sam Miller
    Location: Assabet River NWR
  30. wren sp. Troglodytidae sp.
    # Count: 2
    Date:
    Observer: Dan Trippe
    Location: Assabet River NWR
  31. Bay-breasted/Blackpoll Warbler Setophaga castanea/striata
    # Count: 1
    Date:
    Observer: Mike Gooley
    Location: Assabet River NWR
  32. teal sp. Anatidae sp. (teal sp.)
    # Count: 7
    Date:
    Observer: Mike Gooley
    Location: Assabet River NWR
  33. shorebird sp. Charadriiformes sp. (shorebird sp.)
    # Count: 1
    Date:
    Observer: Mike Gooley
    Location: Assabet River NWR
  34. Louisiana/Northern Waterthrush Parkesia motacilla/noveboracensis
    # Count: 1
    Date:
    Observer: Becky Gibson
    Location: Assabet River NWR