Grey-rumped Swift vs Alpine Swift
Chaetura cinereiventris 对比 Tachymarptis melba
Side-by-Side Comparison
| 属性 | Grey-rumped Swift | Alpine Swift |
|---|---|---|
| 学名 | Chaetura cinereiventris | Tachymarptis melba |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 20.9 cm (8.2 in) | 43.9 cm (17.3 in) |
| 体重 | 16.15 g (0.57 oz) | 97.5 g (3.44 oz) |
| 食性 | Obligate aerial forager catching small flies, aphids, winged termites, and airborne spiders on the wing. | Aerial insectivore taking small flying insects and spiders; may forage at great heights following thermal … |
| 产卵数 | 2-4 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Grey-rumped Swift
Soft, rippling trill with gentle buzzy overtones; light aerial call carrying a faint liquid quality on calm mornings.
Alpine Swift
Rapid series of short, clipped whistles; bright, clean notes delivered in quick succession with occasional doubled phrase.
Geographic Range & Migration
Grey-rumped Swift
Found from Nicaragua south through Central America and northwestern South America to Bolivia and Brazil. Resident in lowland forest and edge.
Alpine Swift
Breeds from southern Europe and North Africa east through Central Asia and the Himalayas to India. Migratory; winters in sub-Saharan Africa.
保护状况
Grey-rumped Swift
Alpine Swift
How to Tell Them Apart
Grey-rumped Swift
Small; dark blackish-brown upperparts; pale grey rump contrasting with dark back; underparts dark grey-brown; short spiny tail; Neotropical species with the grey rump as key field mark; widespread from Caribbean …
Alpine Swift
Large; dark brown upperparts; white throat patch separated from white belly by dark brown breast band; brown flanks; bold tricoloured underpart pattern; one of Europe's largest swifts with distinctive white …
About These Birds
Grey-rumped Swift
灰腹雨燕 (Chaetura cinereiventris)，体长约11厘米。上体黑褐色，腰部灰色，喉和腹部淡灰色，与深色上体形成对比。分布于中美洲至南美洲的热带地区。以飞行昆虫为食，常成群在林冠上空穿梭。
Alpine Swift
高山雨燕在欧洲山地和岩壁上繁殖，以白色腹部和较大体型为特征的长距离迁徙鸟类。