French: Sterne des Aléoutiennes German: Aleutenseeschwalbe Spanish: Charrán aleutiano
S. F. Baird
Kodiak Island, Alaska
Sakhalin through Sea of Okhotsk to Kamchatka and perhaps other sites in Bering Sea; Alaska on Bering and Pacific coasts, from Chukchi Sea and Kotzebue Sound S to Aleutian Is, and E to delta of Copper R and Dry Bay; has bred in Japan (Hokkaido). Main wintering area unknown, although some winter off Indonesia and Malaysia#R#R#R.
32–34 cm; 83–140 g; wingspan 75–80 cm. The breeding adult has a white forehead, black cap and lores, mid-grey back and wings, white rump and tail, and... read more
Unique. Mellow, slightly rolling whistled calls: "piiu", "piirr-i-u", "piiu-pi-pip".
Arctic and subarctic coastal plains, mainly around Bering Sea. Partially vegetated sandy and shell... read more
Food and feeding
Mainly small fish. On Sakhalin primarily sticklebacks (Pungitus pungitus, Gasterosteus aculeatus). Feeds both at sea and... read more
Laying mainly Jun. Usually small, monospecific colonies of 4–150 pairs, but up to 700 pairs on Sakhalin; occasionally solitary, or as... read more
A summer visitor to its breeding colonies. It arrives in breeding areas in mid-May and leaves... read more
Status and conservation
Not globally threatened (Least Concern). Virtually endemic to the Bering Sea but relatively few breeding areas are known. The current breeding distribution and... read more
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