繁殖期成鳥 © Phillip Edwards eBird S65010078 Macaulay Library ML 204848671
非繁殖成鳥/未成年鳥 © Tammy McQuade
非繁殖成鳥/未成年鳥 © Robin Corcoran
繁殖期成鳥 © Andrew Spencer
繁殖期成鳥 © Jeff Bleam

Crested Auklet Aethia cristatella

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辨識

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Dumpy, dark alcid with pale eyes; very small, only slightly larger than a sparrow. Note the thin white “whiskers” trailing backwards from behind each eye. Breeding birds are dark gray-black overall, with a droopy forward-arching crest and a bright orange bill with an uptilted gape which gives them a maniacally grinning appearance. Non-breeding adults and immatures are duller, with a smaller, darker bill and the barest hints of a crest. Breeds in immense colonies on remote rocky islands and forages out at sea. Very vocal at colonies, but also gives occasional yapping barks when out foraging in groups.

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