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Vaux's Swift

Chaetura vauxi

Least Concern

翼開長

22.3 cm

体重

18.033333333333335 g

科

Apodidae

目

Caprimulgiformes

On this page

について

アラスカから中米にかけての北米西部に生息する小型アマツバメ（11〜12 cm）。煙突アマツバメに似るが小さい暗い灰褐色の羽衣。棘状の尾。空中昆虫食性。木の洞に営巣。

Physical Description

Measurement	Value	Imperial
翼開長	22.3 cm	8.8 in
体重	18.033333333333335 g	0.64 oz

識別

羽毛

Small; dark sooty-brown upperparts; pale grey rump slightly paler than back; underparts pale greyish-brown; short spiny tail; smaller and paler-bellied than Chimney Swift; Pacific coast North American species with subtly contrasting rump.

Habitat & Range

🌲 Forest

分布域

Breeds in western North America from Alaska south to Central America. Migrates to winter in Venezuela and northwestern South America.

Diet & Feeding

Exclusively aerial insectivore catching small flying insects and spiders drifting in aerial plankton at altitude.

保全状況

Least Concern

IUCN Red List

行動と繁殖

営巣

Nest type: CV,HC. Incubation: 19 days. Fledging: 20-30 days.

一腹卵数

1-7

鳴き声

さえずり

Soft, high sibilant whisper followed by ticking notes; delicate trill barely audible beyond immediate roosting vicinity.

分類学

Kingdom	Animalia
Phylum	Chordata
Class	Aves
目	Caprimulgiformes (Nightjars & Swifts)
科	Apodidae (Swifts)
Genus	Chaetura
種	Chaetura vauxi

Distribution

Vaux's Swift has been recorded in 2 countries.

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生息あり Not recorded