French: Guillemot à cou blanc German: Silberalk Spanish: Mérgulo antiguo
J. F. Gmelin
Subspecies and Distribution
S. a. antiquus
(J. F. Gmelin, 1789) – Yellow Sea and Sea of Japan (Peter the Great Bay) N through Sakhalin, Kuril Is and N Sea of Okhotsk (Talan I) to Kamchatka, then E through Aleutians to S Alaska (St Lazaria I, Forrester I, Kodiak I, Semidi Is, Shumagin Is, Sandman Reefs), and then S to Queen Charlotte Is (British Columbia). Old breeding record from Washington State#R.
S. a. microrhynchos
Stepanyan, 1972 – Mednyi I, in Commander Is.
24–27 cm; c. 206 g (177–249 g); wingspan 40–43 cm. Small, stocky alcid; thick, rather short horn-coloured bill with blackish culmen; dark brown iris; black... read more
Mainly vocal during breeding season. Males have a peculiar habit of singing at night from a tree or... read more
Offshore and along rocky sea coasts. Breeds on islands, often with dense vegetation of trees,... read more
Food and feeding
During early nesting in British Columbia mostly planktonic crustaceans, especially euphausiids (mainly Thysanoessa spinifera, with... read more
Arrives in vicinity of colonies a month before laying, with first landing c. 2–3 weeks before first egg laid; median clutch... read more
Post-breeding dispersal somewhat limited, some birds remaining within breeding range. Rapid exodus... read more
Status and conservation
Not globally threatened (Least Concern). Total population estimated at 1,500,000 birds (1,000,000–2,000,000). Vulnerable in many areas, and population much reduced... read more
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