Cave Swiftlet vs White-chested Swift
Collocalia linchi so với Cypseloides lemosi
Side-by-Side Comparison
| Thuộc Tính | Cave Swiftlet | White-chested Swift |
|---|---|---|
| Tên Khoa Học | Collocalia linchi | Cypseloides lemosi |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Apodidae | Apodidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 18,7 cm (7.4 in) | 30,0 cm (11.8 in) |
| Khối Lượng | 6,05 g (0.21 oz) | 28,400000000000002 g (1.00 oz) |
| Chế Độ Ăn | Entirely aerial diet of tiny insects and spiders; forages in large flocks over open country … | Obligate aerial forager catching small flies, aphids, winged termites, and airborne spiders on the wing. |
| Số Trứng | 2 | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Cave Swiftlet
Soft, rapid twittering; thin 'tsit-tsit' over Javan forests; audible echolocation clicks inside caves; colonial; produces squeaky chattering at roost sites; calls weakly in flight
White-chested Swift
High, thin twittering; soft 'tsit' calls in flight; calls over Colombian waterfalls; very poorly known; thin, reedy contact notes; one of most rarely documented swifts
Geographic Range & Migration
Cave Swiftlet
Found in Sumatra, Java, Bali, and surrounding Indonesian islands. Resident in forest, cultivated land, and villages. Nests in rock crevices.
White-chested Swift
Known from Colombia and adjacent Ecuador. One of the world's rarest swifts; recorded at waterfalls in humid forest foothills at 500–1,200 m.
Tình Trạng Bảo Tồn
Cave Swiftlet
White-chested Swift
How to Tell Them Apart
Cave Swiftlet
Tiny; dark blue-black upperparts with faint gloss; pale greyish rump band; underparts whitish with grey-buff flanks; moderately forked tail; widespread in caves across Sundaland; less glossy and less white below …
White-chested Swift
Black upperparts and wings; distinctive large white chest patch contrasting sharply with black throat and belly; white confined to central breast; Colombian endemic with unique bold bicoloured plumage unlike any …
About These Birds
Cave Swiftlet
A very small swiftlet (9 cm) found in Java, Bali, Sumatra, and the Lesser Sundas. Dark glossy plumage with a pale rump band. Aerial insectivore, foraging in flocks. One of the primary nest-producing swiftlets; its edible nests (made of saliva) are commercially harvested.
White-chested Swift
A medium-sized swift (14-15 cm) endemic to the upper Cauca Valley of Colombia. Sooty-black plumage with a white breast patch. Aerial insectivore of subtropical forests. Classified as Endangered due to extremely restricted range and ongoing habitat loss.