Philippine Swiftlet vs Black Spinetail
Aerodramus mearnsi compared with Telacanthura melanopygia
Side-by-Side Comparison
| Attribute | Philippine Swiftlet | Black Spinetail |
|---|---|---|
| Scientific Name | Aerodramus mearnsi | Telacanthura melanopygia |
| Order | Caprimulgiformes | Caprimulgiformes |
| Family | Apodidae | Apodidae |
| Conservation Status | Least Concern | Least Concern |
| Length | — | — |
| Wingspan | 21.8 cm (8.6 in) | 32.4 cm (12.8 in) |
| Weight | 11.5 g (0.41 oz) | 52.0 g (1.83 oz) |
| Diet | Obligate aerial feeder on microscopic flying insects and spiders; highly social forager over tropical forest. | High-speed aerial insectivore catching small flying insects and aerial spiders during fast sustained flight. |
| Clutch Size | 4 | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Philippine Swiftlet
High twittering trill; thin 'tsit-tsit' notes over Philippine mountains; echolocation clicks in cave roosts; calls softly; flock produces chattering at roost; unremarkable vocalizations
Black Spinetail
Deep, resonant chattering with gravelly undertones; series of rough churring notes interspersed with sharp screaming calls.
Geographic Range & Migration
Philippine Swiftlet
Endemic to the Philippines, found on Luzon, Mindanao, Mindoro, and adjacent islands. Resident in lowland and hill forest and open areas.
Black Spinetail
Found in West and Central Africa from Nigeria and Cameroon east to Uganda. Resident in lowland rainforest and forest edge.
Conservation Status
Philippine Swiftlet
Black Spinetail
How to Tell Them Apart
Philippine Swiftlet
Small; dark grey-brown upperparts with faint gloss; pale grey rump band; underparts greyish-white; moderately forked tail; Philippine endemic using echolocation; echolocation ability distinguishes Aerodramus from Collocalia swiftlets.
Black Spinetail
Large; entirely black plumage with slight gloss; black rump unlike white-rumped congeners; underparts dark; spiny tail; West African forest species; all-black coloration with no contrasting markings distinguishes it from all …
About These Birds
Philippine Swiftlet
A small swiftlet (10-11 cm) endemic to the Philippines. Dark plumage with a pale rump. Aerial insectivore. Colonial cave nester. Uses echolocation for navigating dark cave interiors. Found across the major Philippine island groups. Poorly studied ecology.
Black Spinetail
A medium-sized spinetail swift (14-15 cm) of lowland rainforests in West and Central Africa. All-dark plumage. Spine-tipped tail for bracing against tree trunks. Aerial insectivore, foraging above the forest canopy. Nests inside hollow trees. Uncommon and seldom observed.