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Chestnut-collared swift : ウィキペディア英語版 | Chestnut-collared swift
The chestnut-collared swift (''Streptoprocne rutila'') is a resident breeding bird from Mexico and Trinidad south to Peru and Bolivia. It was one of the species of ''Cypseloides'' controversially moved to ''Streptoprocne'' by the AOU (BLI 2004). ==Description== This swift is a medium-sized species, 12.7-13.5 cm long, with a longish tail, and weighing 20 g. The male is blackish with a rufous collar. In females and immatures the rufous collar is incomplete or absent. Young birds also differ from the females in that they have reddish edges to the crown feathers. The Chestnut-collared Swift has a chattering ''chit-chit-chit'' call.
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「Chestnut-collared swift」の詳細全文を読む
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