Papuan Swiftlet vs Chestnut-collared Swift
Aerodramus papuensis compared with Streptoprocne rutila
Side-by-Side Comparison
| Attribute | Papuan Swiftlet | Chestnut-collared Swift |
|---|---|---|
| Scientific Name | Aerodramus papuensis | Streptoprocne rutila |
| Order | Caprimulgiformes | Caprimulgiformes |
| Family | Apodidae | Apodidae |
| Conservation Status | Data Deficient | Least Concern |
| Length | — | — |
| Wingspan | 26.5 cm (10.4 in) | 26.0 cm (10.2 in) |
| Weight | 20.4 g (0.72 oz) | 21.8 g (0.77 oz) |
| Diet | Feeds aerially on tiny flying insects and drifting spiders; often forages in mixed-species flocks over … | Entirely airborne feeder on tiny flies, gnats, and airborne arachnids; one of the most aerial … |
| Clutch Size | -- | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Papuan Swiftlet
High thin twittering; 'tsit-tsit' over New Guinea; echolocation clicks used in cave roosts; larger than many swiftlets; slightly deeper calls; data deficient in recordings
Chestnut-collared Swift
High, screaming trill; rapid 'scree-scree' in flight; shrill and penetrating; calls over Neotropical mountains and canyon edges; alarm a rapid screeching chatter
Geographic Range & Migration
Papuan Swiftlet
Found in lowland New Guinea and the Bismarck Archipelago. Resident in lowland rainforest and forest edge. Little-known Papuan endemic.
Chestnut-collared Swift
Found from Mexico and the Caribbean south through Central America and South America to Argentina. Resident in highlands near mountain cliffs.
Conservation Status
Papuan Swiftlet
Chestnut-collared Swift
How to Tell Them Apart
Papuan Swiftlet
Small; dark brownish-grey upperparts; pale grey rump band; underparts pale grey; forked tail; New Guinea swiftlet; large for the genus; data-deficient with limited specimens; rump band moderately contrasting with dark …
Chestnut-collared Swift
Dark blackish-brown body with diagnostic rich chestnut collar encircling entire neck; collar bold and complete; underparts slightly paler brown; small swift with striking warm-toned neck band contrasting vividly with dark …
About These Birds
Papuan Swiftlet
A small swiftlet (11-12 cm) found in lowland and hill forests of New Guinea. Dark plumage with a slightly pale rump. Aerial insectivore. Colonial cave nester using echolocation. Closely related to the Edible-nest Swiftlet. Limited published ecological data.
Chestnut-collared Swift
A small swift (13-14 cm) found from Mexico through Central America and South America to Bolivia and Brazil. Dark plumage with a distinctive chestnut collar and throat. Aerial insectivore, often foraging in mixed-species swift flocks over forests and highlands.