| 翻訳と辞書 |
| White-necked thrush ： ウィキペディア英語版 |
White-necked thrush
The white-necked thrush (''Turdus albicollis'') is a songbird found in forest and woodland in South America. The taxonomy is potentially confusing, and it sometimes includes the members of the ''T. assimilis'' group as subspecies, in which case the "combined species" is referred to as the white-throated thrush (a name limited to ''T. assimilis'' when the two are split). On the contrary, it may be split into two species, the rufous-flanked thrush (''T. albicollis'') and the grey-flanked thrush (''T. phaeopygos'').
==Description==
This thrush is 20½-26 cm (8–10 in) long and weighs 40-77 g (1.4-2.7 oz).〔Collar (2005)〕 The upperparts are dark brown, turning duskier or greyer towards the ocular region. The throat is white with dense dark streaks, except on the lowermost part, resulting in the appearance of a white crescent below the dark-streaked white throat. This has given rise to both its English and scientific name. The crissum and central belly are whitish, and the chest is grey often tinged brown. The members of the nominate group have conspicuous rufous flanks, and the bill is yellow with a dusky culmen. The flanks are paler and more tawny in the subspecies ''crotopezus'', which also has the entire upper mandible dusky. The members of the ''phaeopygos'' group lack contrasting rufous or tawny flanks, and have bills that are almost entirely dusky. All subspecies have pinkish-brown legs and a reddish or yellow eye-ring.〔 Sexes are similar, but juveniles are duller, with dull orange spotting above, and brownish spotting below.〔Restall ''et al.'' (2006)〕
The song is a relatively musical, often rather monotonous〔Hilty (2003)〕 ''two-e-o, two-e''. The calls is a distinctive ''wuk'', while the alarm is a rough ''jjig-wig-wig''.〔
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「White-necked thrush」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.
|
|