Introduction

The 359 species accounts on this website represent those we believe to have been correctly identified since 1950. A summary of our process can be found here.

Species Accounts

• Alder Flycatcher / Empidonax alnorum
• American Avocet / Recurvirostra americana
• American Bittern / Botarus lentiginosus
• American Black Duck / Anas rubripes
• American Coot / Fulica Americana
• American Crow / Corvus brachyrhynchos
• American Golden-Plover / Pluvialis dominica
• American Goldfinch / Spinus tristis
• American Kestrel / Falco sparverius
• American Oystercatcher / Haematopus palliates
• American Pipit / Anthus rubescens
• American Redstart / Setophaga ruticilla
• American Robin / Turdus migratorius
• American Three-toed Woodpecker / Picoides dorsalis
• American Tree Sparrow / Spizelloides arborea
• American Wigeon / Mareca americana
• American Woodcock / Scolopax minor
• Arctic Tern / Sterna paradisaea
• Ash-throated Flycatcher / Myarchus cinerascens
• Atlantic Puffin / Fratercula arctica
• Baird's Sandpiper / Calidris bairdii
• Bald Eagle / Haliaeetus leucocephalus
• Baltimore Oriole / Icterus galbula
• Bank Swallow / Riparia riparia
• Barn Swallow / Hirundo rustica
• Barred Owl / Strix varia
• Barrow's Goldeneye / Bucephala icelandica
• Bay-breasted Warbler / Setophaga castanea
• Belted Kingfisher / Megaceryle alcyon
• Black Guillemot / Cepphus grille
• Black Scoter / Melanitta americana
• Black Skimmer / Rynchops niger
• Black Tern / Chlidonias niger
• Black Vulture / Coragyps atratus
• Black-and-white Warbler / Mniotilta varia
• Black-backed Woodpecker / Picoides arcticus
• Black-bellied Plover / Pluvialis squatarola
• Black-bellied Whistling-Duck / Dendrocygn autumnalis
• Black-billed Cuckoo / Coccyzus erythropthalmus
• Black-capped Chickadee / Poecile atricapillis
• Black-crowned Night-Heron / Nycticorax nycticorax
• Black-headed Grosbeak / Pheucticus melanocephalus
• Black-headed Gull / Chroicocephalus ridibundus
• Black-legged Kittiwake / Rissa tridactyla
• Black-throated Blue Warbler / Setophaga caerulescens
• Black-throated Gray Warbler / Setophaga nigrescens
• Black-throated Green Warbler / Setophaga virens
• Blackburnian Warbler / Setophaga fusca
• Blackpoll Warbler / Setophaga striata
• Blue Grosbeak / Passerina caerulea
• Blue Jay / Cyanocitta cristata
• Blue-gray Gnatcatcher / Polioptila caerulea
• Blue-headed Vireo / Vireo solitarius
• Blue-winged Teal / Spatula discors
• Blue-winged Warbler / Vermivora cyanoptera
• Bobolink / Dolichonyx oryzivorus
• Bohemian Waxwing / Bombycilla garrulous
• Bonaparte's gull / Chroicocephalus philadelphia
• Boreal Chickadee / Poecile hudsonicus
• Boreal Owl / Aegolius funereus