Adult male © Bob MacDonnell eBird S64013796 Macaulay Library ML 206661961
Female © Jay McGowan
Adult male © Evan Lipton
Female © Jay McGowan
Immature male © Matthew Addicks
+ 4
Adult male © Chris Wood
Immature male © Mary McSparen
Adult male and immature © Samuel Paul Galick

amerikansk knölsvärta Melanitta deglandi

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Identification

POWERED BY MERLIN

Large scoter, with distinctive white patch on wing. Dark chocolate-brown overall; males are darker than females and have small white mark under eye, dark knob on the bill, and pink bill tip. Females have two rounded white patches on face. At a distance, separated from Surf Scoter by more sloping head shape and white in the wing. Winters on coastal waters and large freshwater lakes. Occasionally found on large inland lakes during migration. Dives frequently, feeding on mollusks and crustaceans.

POWERED BY MERLIN