Philippine Spinetail vs Chestnut-collared Swift
Mearnsia picina compared with Streptoprocne rutila
Side-by-Side Comparison
| Attribute | Philippine Spinetail | Chestnut-collared Swift |
|---|---|---|
| Scientific Name | Mearnsia picina | Streptoprocne rutila |
| Order | Caprimulgiformes | Caprimulgiformes |
| Family | Apodidae | Apodidae |
| Conservation Status | Near Threatened | Least Concern |
| Length | — | — |
| Wingspan | 32.3 cm (12.7 in) | 26.0 cm (10.2 in) |
| Weight | 11.5 g (0.41 oz) | 21.8 g (0.77 oz) |
| Diet | Aerial diet of small flying insects and spiders; forages at speed over forest and open … | 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
Philippine Spinetail
High-pitched, buzzy twittering; sharp 'tsit-tsit' in fast low-level flight over Philippine forest; calls rapidly in tight flocks; distinctive wing sound in fast aerial display
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
Philippine Spinetail
Endemic to the Philippines, found on Mindanao and adjacent southern islands. Resident in lowland and hill forest and edge. Uncommon.
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
Philippine Spinetail
Chestnut-collared Swift
How to Tell Them Apart
Philippine Spinetail
Tiny but long-winged; dark blackish-brown overall; pale grey-white throat and chin; short spiny tail projections visible at close range; Philippine endemic; small size contrasts with proportionally very long scythe-like wings.
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
Philippine Spinetail
A large spinetail swift (12-13 cm) endemic to the Philippines. Dark plumage with short, spine-tipped tail feathers. Aerial insectivore, foraging over lowland and montane forest. Colonial nester in tree hollows and cliff crevices. Uncommon and poorly studied.
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.