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The long-billed murrelet (''Brachyramphus perdix'') is a small seabird from the North Pacific. It is an unusual member of the auk family, often nesting far inland in old growth forests. The long-billed murrelet, like its cousins the marbled and Kittlitz's murrelets, is thought to have experienced a decline in numbers recently. It closely resembles the marbled murrelet, of which it was considered a subspecies until 1998, when Friesen ''et al.'' showed that the mtDNA variation was greater between these two forms than between marbled and Kittlitz's murrelets. This species is found from Kamchatka to the Sea of Okhotsk. Most birds winter in the seas around northern Japan with some reaching South Korea and southern Japan. The Marbled Murrelet, in contrast tends to remain closer to its breeding grounds. ==Description== The long-billed murrelet is a small (25 cm long), chunky auk with a slender black bill. It has pointed wings and plumage that varies by season. The non-breeding appearance is typically white underneath with a black crown, nape, wings and back. The breeding plumage is mainly brown, with pale feather edges giving a scaly appearance; the central underparts, normally below the surface on a swimming bird, are white. The long-billed murrelet is longer billed, slightly larger, and 20% heavier than the marbled murrelet, and has a white eye ring. In breeding plumage it shows a pale throat which is absent in marbled murrelet, and weaker scaling because of fewer rusty and buff markings. In winter, the long-billed murrelet lacks the white collar of the marbled. 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「Long-billed murrelet」の詳細全文を読む スポンサード リンク
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