Western Glossy Swiftlet vs White-chested Swift
Collocalia affinis comparé à Cypseloides lemosi
Side-by-Side Comparison
| Attribut | Western Glossy Swiftlet | White-chested Swift |
|---|---|---|
| Nom scientifique | Collocalia affinis | Cypseloides lemosi |
| Ordre | Caprimulgiformes | Caprimulgiformes |
| Famille | Apodidae | Apodidae |
| Statut de conservation | Not Evaluated | Least Concern |
| Longueur | — | — |
| Envergure | — | 30,0 cm (11.8 in) |
| Poids | 8,65 g (0.31 oz) | 28,400000000000002 g (1.00 oz) |
| Régime alimentaire | Aerial insectivore consuming minute dipterans, midges, and ballooning spiders caught in continuous fast flight. | Obligate aerial forager catching small flies, aphids, winged termites, and airborne spiders on the wing. |
| Taille de la couvée | 1-3 | -- |
| Population Trend | — | — |
Habitat Comparison
Habitats partagés
Western Glossy Swiftlet only
Aucun(e)
White-chested Swift only
Song & Call Comparison
Western Glossy Swiftlet
High, thin 'tsit-tsit'; rapid chittering in flight; echolocation clicks used inside caves; tiny size produces very high-pitched thin calls; soft twittering over forest
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
Western Glossy Swiftlet
Found from the Andaman Islands and northeastern India through Southeast Asia to Borneo and the Philippines. Resident in diverse forest habitats.
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.
Statut de conservation
Western Glossy Swiftlet
White-chested Swift
How to Tell Them Apart
Western Glossy Swiftlet
Tiny; glossy blue-black upperparts with green iridescence; underparts dark sooty-grey; white-buff rump band; deeply forked tail; recently split taxon similar to Philippine Glossy Swiftlet but with subtly different rump and …
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
Western Glossy Swiftlet
A small swiftlet (9-10 cm) found in lowland and hill forests of the Malay Peninsula, Sumatra, and Borneo. Glossy blue-black upperparts with a paler rump. Aerial insectivore, feeding on tiny flying insects. Colonial nester in caves and buildings.
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.