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![]() Black Skimmer Rynchops niger ADULT SUMMER Has mainly black upper wings and back, continuous with black cap and back of...
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![]() Black Tern Chlidonias niger ADULT SUMMER Has mainly gray upperparts, but head and neck, along with breast and belly, are...
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![]() Black-and-white Warbler Mniotilta varia ADULT MALE Striped black and white overall, palest on underparts, with two white wing bars. Throat...
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![]() USNPS U.S. National Park Service,Yukon-Charley Rivers National Preserve, Alaska Black-backed Woodpecker Picoides arcticus ADULT MALE Has mostly black upperparts, including tail, but note subtle pale barring on flight feathers....
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![]() Black-bellied Plover Pluvialis squatarola ADULT MALE In summer has striking black underparts, separated from spangled gray upperparts by broad white...
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![]() Black-billed Cuckoo Coccyzus erythropthalmus ADULT Has gray-brown upperparts (crown is same color as back) and whitish underparts. Flight feathers are...
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![]() Black-capped Chickadee Poecile atricapillus ADULT Has a gray-buff back and mostly dark wings, but with whitish edges to inner flight...
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![]() Black-crowned Night-Heron Nycticorax nycticorax ADULT Has dark, daggerlike bill, black crown and back, gray wings, and pale face and underparts;...
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![]() Black-headed Gull Larus ridibundus Adult has white leading edge to wing and dark trailing edge to outer upper wing. Has...
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![]() Black-legged Kittiwake Rissa tridactyla ADULT SUMMER Has pale gray back and upper wings, except for white trailing edge and well-defined...
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![]() Black-throated Blue Warbler Dendroica caerulescens ADULT MALE Has mostly dark blue upperparts with darker flight feathers and a striking white patch...
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![]() Black-throated Green Warbler Dendroica virens ADULT MALE Has olive-green back, extending up nape to crown. Tail is white from below and...
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![]() Mdf/CCSA Blackburnian Warbler Dendroica fusca ADULT MALE BREEDING Has mostly black upperparts, including crown, with white lines on back, pale edges...
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![]() Donna Dewhurst Blackpoll Warbler Dendroica striata SPRING MALE Has olive-gray, dark-streaked back and nape, with black cap and white cheek, defined below...
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![]() Blue Grosbeak Guiraca caerulea ADULT MALE Stunning, with mainly blue plumage; note the two reddish brown wing bars, buffy tertial...
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