Philippine Swiftlet vs White-collared Swift
Aerodramus mearnsi مقارنةً بـ Streptoprocne zonaris
Side-by-Side Comparison
| السمة | Philippine Swiftlet | White-collared Swift |
|---|---|---|
| الاسم العلمي | Aerodramus mearnsi | Streptoprocne zonaris |
| الرتبة | Caprimulgiformes | Caprimulgiformes |
| الفصيلة | Apodidae | Apodidae |
| حالة الحفاظ | Least Concern | Least Concern |
| الطول | — | — |
| طول الجناح | 21,8 cm (8.6 in) | 42,5 cm (16.7 in) |
| الوزن | 11,5 g (0.41 oz) | 106,45 g (3.75 oz) |
| النظام الغذائي | Obligate aerial feeder on microscopic flying insects and spiders; highly social forager over tropical forest. | Obligate aerial insectivore; gathers small flying insects, winged ants, and airborne spiders during flight. |
| عدد البيض في الوضع | 4 | 2 |
| 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
White-collared Swift
Loud, screaming 'shreee-shreee'; powerful screeching trill; calls from large flocks over mountains; very audible; one of the loudest Neotropical swifts; alarm a harsh rattle
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.
White-collared Swift
Found from Mexico south through Central America to South America east of the Andes, reaching Bolivia and southern Brazil. Often in large flocks.
حالة الحفاظ
Philippine Swiftlet
White-collared Swift
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.
White-collared Swift
Large; glossy blue-black plumage with bold broad white collar encircling entire neck; collar clean and complete; underparts black; large slightly forked tail; among the most recognisable Neotropical swifts due to …
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.
White-collared Swift
A very large swift (20-22 cm, wingspan 45-55 cm) with a bold white collar band, the largest New World swift. Found from Mexico to southern Brazil and the Caribbean. Aerial insectivore, foraging in large, noisy flocks over forests and cities. Nests behind waterfalls and in caves.