Pale-rumped Swift vs Alpine Swift
Chaetura egregia เปรียบเทียบกับ Tachymarptis melba
Side-by-Side Comparison
| คุณสมบัติ | Pale-rumped Swift | Alpine Swift |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Chaetura egregia | Tachymarptis melba |
| อันดับ | Caprimulgiformes | Caprimulgiformes |
| วงศ์ตระกูล | Apodidae | Apodidae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | — | — |
| กว้างปีก | 23.4 cm (9.2 in) | 43.9 cm (17.3 in) |
| น้ำหนัก | 23.68 g (0.84 oz) | 97.5 g (3.44 oz) |
| อาหาร | Obligate aerial insectivore; gathers small flying insects, winged ants, and airborne spiders during flight. | Aerial insectivore taking small flying insects and spiders; may forage at great heights following thermal … |
| จำนวนไข่ | -- | 1-4 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Pale-rumped Swift
Breathy, rippling chatter with airy quality; light twittering notes loosely strung together in relaxed arrhythmic sequences.
Alpine Swift
Rapid series of short, clipped whistles; bright, clean notes delivered in quick succession with occasional doubled phrase.
Geographic Range & Migration
Pale-rumped Swift
Found in the western Amazon basin from eastern Peru and Bolivia east to central Brazil. Resident in lowland tropical forest near rivers.
Alpine Swift
Breeds from southern Europe and North Africa east through Central Asia and the Himalayas to India. Migratory; winters in sub-Saharan Africa.
สถานะการอนุรักษ์
Pale-rumped Swift
Alpine Swift
How to Tell Them Apart
Pale-rumped Swift
Small; dark sooty-brown upperparts; distinctively very pale whitish rump strongly contrasting with dark back; underparts dark grey-brown; short spiny tail; Amazonian species with one of the most striking white rumps …
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
Pale-rumped Swift
A small swift (11-12 cm) of humid lowland forests from Colombia to Peru and western Brazil. Dark plumage with a conspicuous pale rump band. Spine-tipped tail. Aerial insectivore, foraging over forest canopy and rivers. Often seen in mixed-species swift flocks.
Alpine Swift
A large swift (20-22 cm, wingspan 54-60 cm) with a white belly and throat contrasting with dark brown upperparts. Found from southern Europe and Africa to Central Asia. Aerial insectivore, foraging at great heights. Nests on cliff faces in large colonies. Powerful, fast flier.