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The least storm petrel (''Halocyptena microsoma'') is a small seabird of the storm petrel family Hydrobatidae. It is 13–15 cm in length, with a wingspan of 32 cm. It is the smallest member of the order Procellariiformes. The species is the only member of the genus ''Halocyptena'' although it is sometimes included in the genus ''Oceanodroma''. It breeds on islands off the Baja Peninsula and Gulf of California of Mexico in rock crevices or small burrows in soft earth and lays a single white egg. Like most petrels, its walking ability is limited to a short shuffle to the burrow. It is a colonial nester. It spends the rest of the year at sea, reaching as far south as the tropical Pacific South America. It frequently can be seen well offshore of southern California in late summer and autumn. It feeds on mainly planktonic crustaceans, with a preference of larvae of spiny lobster. It feeds similarly to other storm petrels, picking food of the surface of the water while in flight. The least storm petrel suffers losses on some of the breeding islands, particularly from feral cats and rats. ==References== * "National Geographic" ''Field Guide to the Birds of North'' ''America'' ISBN 0-7922-6877-6 *'' Seabirds, an Identification Guide'' by Peter Harrison, (1983) ISBN 0-7470-1410-8 *''Handbook of the Birds of the World Vol 1'', Josep del Hoyo editor, ISBN 84-87334-10-5 *"National Audubon Society" ''The Sibley Guide to Birds'', by David Allen Sibley, ISBN 0-679-45122-6 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「least storm petrel」の詳細全文を読む スポンサード リンク
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