White-chested Swift vs Lesser Swallow-tailed Swift
Cypseloides lemosi مقارنةً بـ Panyptila cayennensis
Side-by-Side Comparison
| السمة | White-chested Swift | Lesser Swallow-tailed Swift |
|---|---|---|
| الاسم العلمي | Cypseloides lemosi | Panyptila cayennensis |
| الرتبة | Caprimulgiformes | Caprimulgiformes |
| الفصيلة | Apodidae | Apodidae |
| حالة الحفاظ | Least Concern | Least Concern |
| الطول | — | — |
| طول الجناح | 30,0 cm (11.8 in) | 23,8 cm (9.4 in) |
| الوزن | 28,400000000000002 g (1.00 oz) | 21,8 g (0.77 oz) |
| النظام الغذائي | Obligate aerial forager catching small flies, aphids, winged termites, and airborne spiders on the wing. | Aerial insectivore feeding on swarms of small flies, winged ants, and tiny beetles during sustained … |
| عدد البيض في الوضع | -- | 2-3 |
| Population Trend | — | — |
Habitat Comparison
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
Lesser Swallow-tailed Swift
Dry, clicking chatter interspersed with thin whistles; rapid mechanical trill delivered with persistent energy throughout day.
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.
Lesser Swallow-tailed Swift
Found from Mexico south through Central America and South America to Bolivia and Brazil. Resident in lowland and foothill forest edge.
حالة الحفاظ
White-chested Swift
Lesser Swallow-tailed Swift
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 …
Lesser Swallow-tailed Swift
Black upperparts; white throat and white flanks; white rump patch; deeply forked long tail; smaller version of Great Swallow-tailed Swift; widespread from Mexico to South America; forked tail and bold …
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.
Lesser Swallow-tailed Swift
A medium-sized swift (13-14 cm) with a moderately forked tail and white throat patch. Found from southern Mexico through Central America to Peru and Brazil. Dark plumage. Aerial insectivore, foraging over forest canopy and clearings. Nests under overhanging cliffs and bridges.