White-chinned Swift vs Alpine Swift
Cypseloides cryptus в сравнении с Tachymarptis melba
Side-by-Side Comparison
| Характеристика | White-chinned Swift | Alpine Swift |
|---|---|---|
| Научное название | Cypseloides cryptus | Tachymarptis melba |
| Отряд | Caprimulgiformes | Caprimulgiformes |
| Семейство | Apodidae | Apodidae |
| Охранный статус | Least Concern | Least Concern |
| Длина | — | — |
| Размах крыльев | 27,4 cm (10.8 in) | 43,9 cm (17.3 in) |
| Масса | 35,95 g (1.27 oz) | 97,5 g (3.44 oz) |
| Питание | Aerial-only diet of small flying insects, winged termites, and drifting spiders caught during continuous flight. | Aerial insectivore taking small flying insects and spiders; may forage at great heights following thermal … |
| Размер кладки | 1 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
White-chinned Swift
Soft, buzzy twittering; weak 'tsit-tsit' in flight; calls over Neotropical waterfalls; thin, high-pitched contact notes; soft compared to most swifts; rarely vocal
Alpine Swift
Rapid series of short, clipped whistles; bright, clean notes delivered in quick succession with occasional doubled phrase.
Geographic Range & Migration
White-chinned Swift
Found from southern Mexico south through Central America and northwestern South America to Bolivia. Nomadic; joins large mixed swift flocks.
Alpine Swift
Breeds from southern Europe and North Africa east through Central Asia and the Himalayas to India. Migratory; winters in sub-Saharan Africa.
Охранный статус
White-chinned Swift
Alpine Swift
How to Tell Them Apart
White-chinned Swift
Uniformly sooty-black plumage with narrow white chin spot; no white rump or other pale markings; large for a Cypseloides; cryptic appearance made identification historically difficult; white chin the sole distinguishing …
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
White-chinned Swift
A medium-sized swift (14-15 cm) of humid lowland and foothill forests from southern Mexico to Peru. Dark sooty-brown plumage with a small white chin patch. Aerial insectivore, feeding over forest canopy and ravines. Nests behind waterfalls. Uncommon and poorly studied.
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.