Adulto reproductivo © Andy Bankert eBird S70285066 Macaulay Library ML 242495381
Adulto no reproductivo/inmaduro © Brian Sullivan
Adulto reproductivo © Lisle Gwynn
Adulto en muda © Carl Engstrom
Adulto no reproductivo/inmaduro © Brian Sullivan
+ 5
Adulto reproductivo © Ian Davies
Adulto reproductivo © Bob Friedrichs
Adulto reproductivo © Nigel Voaden
Adulto no reproductivo/Primer invierno (con Common Loon) © Kathy Mihm Dunning

Colimbo de Adams Gavia adamsii

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Identificación

PROPORCIONADO POR MERLIN

A large, heavy-billed loon of the High Arctic. Much like a Common Loon but with a thicker neck and blockier head. Pay special attention to the bill: note straight upper edge, angled lower edge, and all-pale yellowish color (especially the tip). Breeding adults have gorgeous black-and-white patterning; especially note boldly checkered back and thick lines forming a necklace. Nonbreeding adults and juveniles can be quite pale and sandy brown, especially on the face and neck. Beware the bill of Common Loon can appear very pale in some lighting, but always has a dark line along the top all the way to the tip. Breeds on ponds in the tundra. In winter, mostly found on nearshore ocean waters and bays.

PROPORCIONADO POR MERLIN