| 翻訳と辞書 |
| Larus cachinnans ： ウィキペディア英語版 |
Caspian gull
Caspian gull is a name applied to the gull taxon ''Larus cachinnans'', a member of the herring gull/lesser black-backed gull complex.
== Description ==
It is a large gull at long, with a wingspan and a body mass of .〔''CRC Handbook of Avian Body Masses'' by John B. Dunning Jr. (Editor). CRC Press (1992), ISBN 978-0-8493-4258-5.〕〔''Gulls: Of North America, Europe, and Asia'' by Klaus Malling Olsen & Hans Larsson. Princeton University Press (2004). ISBN 978-0691119977.〕 Among standard measurements, the wing chord is , the bill is and the tarsus is .〔 The Caspian gull has a long, slender bill, accentuated by the sloping forehead. The legs, wings and neck are longer than those of the herring gull and yellow-legged gull. The eye is small and often dark, the legs vary from pale pink to a pale yellowish colour. The back and wings are a slightly darker shade of grey than the herring gull but slightly paler than the yellow-legged gull. The outermost primary feather has a large white tip and a white tongue running up the inner web.
First-winter birds have a pale head with dark streaking on the back of the neck. The underparts are pale and the back is greyish. The greater and median wing-coverts have whitish tips forming two pale lines across the wing.
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「Caspian gull」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|