White-chested Swift vs Silver-backed Needletail
Cypseloides lemosi so với Hirundapus cochinchinensis
Side-by-Side Comparison
| Thuộc Tính | White-chested Swift | Silver-backed Needletail |
|---|---|---|
| Tên Khoa Học | Cypseloides lemosi | Hirundapus cochinchinensis |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Apodidae | Apodidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 30,0 cm (11.8 in) | 36,6 cm (14.4 in) |
| Khối Lượng | 28,400000000000002 g (1.00 oz) | 85,97999999999999 g (3.03 oz) |
| Chế Độ Ăn | Obligate aerial forager catching small flies, aphids, winged termites, and airborne spiders on the wing. | Obligate aerial forager on small insects and airborne spiders; among the fastest-flying of all swift … |
| Số Trứng | -- | -- |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
White-chested Swift only
Silver-backed Needletail only
Song & Call Comparison
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
Silver-backed Needletail
Dry, rattling trill with softer ending; rapid series of clipped notes dropping slightly in pitch as the bird gains speed.
Geographic Range & Migration
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.
Silver-backed Needletail
Found from northeastern India and China through Southeast Asia to the Greater Sundas. Partially migratory; winters south in forest and open areas.
Tình Trạng Bảo Tồn
White-chested Swift
Silver-backed Needletail
How to Tell Them Apart
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 …
Silver-backed Needletail
Large; blackish-brown body; distinctive large silvery-white back patch between wings; white throat and undertail coverts; short spiny tail; Southeast Asian species closely resembling White-throated Needletail but silvery-white saddle more extensive.
About These Birds
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.
Silver-backed Needletail
A large needletail swift (19-20 cm) found in hill and montane forests from India through Southeast Asia. Dark plumage with a silver-grey back and white throat. Spine-tipped tail. Aerial insectivore with powerful, rapid flight. Resident and partial migrant.