Vaux's Swift
Chaetura vauxi
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<birdfyi-bird slug="chaetura-vauxi"></birdfyi-bird>关于
沃氏雨燕 (Chaetura vauxi)，体长约11厘米，为北美最小的雨燕之一。体羽褐灰色，喉和腹部较淡，腰部略浅，尾短。繁殖于北美洲西部，冬季迁至中美洲和南美洲。以飞行昆虫为食，常在烟囱中营巢。
Physical Description
| Measurement | Value | Imperial |
|---|---|---|
| 翼展 | 22.3 cm | 8.8 in |
| 体重 | 18.033333333333335 g | 0.64 oz |
识别
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
分布范围
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.
保护状况
行为与繁殖
筑巢
Nest type: CV,HC. Incubation: 19 days. Fledging: 20-30 days.
产卵数
1-7
声音
鸣唱
Soft, high sibilant whisper followed by ticking notes; delicate trill barely audible beyond immediate roosting vicinity.
分类学
| Kingdom | Animalia |
| Phylum | Chordata |
| Class | Aves |
| 目 | Caprimulgiformes (Nightjars & Swifts) |
| 科 | Apodidae (Swifts) |
| Genus | Chaetura |
| 物种 | Chaetura vauxi |
Distribution
Vaux's Swift has been recorded in 2 countries.
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External Databases
常见问题
What does the Vaux's Swift eat?
Where does the Vaux's Swift live?
Is the Vaux's Swift endangered?
How does the Vaux's Swift nest?
What does the Vaux's Swift sound like?
How big is the Vaux's Swift?
What order and family does the Vaux's Swift belong to?
Similar Birds
Other species in the Apodidae family