Alcidae () |
41 cm TL (male/unsexed); max.weight: 619.0 g |
pelagic; marine; depth range 0 - 29 m |
Pacific Ocean and the Arctic. From Chukchi Sea and Alaska, south to Kuril Is. west to Japan and Russia and east to California. Subtropical to polar. |
Culmen: 4.83 cm; tarsus: 3.07 cm; wing: 18.97 cm. |
Total Length: 36 to 41 cm; Wingspan: 56 to 58 cm (Ref. 8812). With sperm-storage glands allowing delayed fertilization of ovum (Ref. 87784). Plunge diver; continental shelf; <100 km (Ref. 356). As in all seabirds, copulation takes place ashore and the presence sperm-storage glands allow delayed fertilization of ovum out at sea. Vulnerable to oil spill as a piscivore; saw 50% decline in population from 1989 in Prince William Sound after the Exxon Valdez oil spill (Ref. 87784). Nests on rock crevices and cliffs (Ref. 62200). |
(LC); Date assessed: 19 February 2020 Ref. 123251)
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