French: Guillemot du Japon German: Japanalk Spanish: Mérgulo japonés
Other common names:
Coasts and islands off E & S Japan (mainly from S Honshu and Izu Is S to Shikoku and Kyushu) and S Korea; possible breeding in Russia (Peter the Great Bay). Winters mostly offshore from breeding locations.
24–26 cm; 139–213 g. Short, thick, pale bluish-grey bill with dark culmen; iris dark brown, almost blackish; black head with crest of long, narrow black feathers... read more
Two calls described, a "byubyubuy" nocturnally at colonies, and a bunting-like "chi... read more
Offshore and along sea coasts in boreo-cool subtropical waters of NW Pacific. Breeds on small rocky... read more
Food and feeding
Mostly planktonic crustaceans, especially euphausiids, and small larval fish throughout year. Summer foods probably similar to those of... read more
Phenology and reproductive biology poorly known. Spring arrival mid to late Feb; laying normally mid Mar to late Jun or early Jul, and... read more
Winters mainly offshore, mostly close to breeding areas. General post-breeding dispersal normally... read more
Status and conservation
VULNERABLE. Rarest and most threatened alcid, and probably second-most threatened seabird species in N Hemisphere. Population small and still declining, estimated by BirdLife... read more
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