Papuan Spinetail vs White-collared Swift
Mearnsia novaeguineae so với Streptoprocne zonaris
Side-by-Side Comparison
| Thuộc Tính | Papuan Spinetail | White-collared Swift |
|---|---|---|
| Tên Khoa Học | Mearnsia novaeguineae | Streptoprocne zonaris |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Apodidae | Apodidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 26,0 cm (10.2 in) | 42,5 cm (16.7 in) |
| Khối Lượng | 34,0 g (1.20 oz) | 106,45 g (3.75 oz) |
| Chế Độ Ăn | High-speed aerial insectivore catching small flying insects and aerial spiders during fast sustained flight. | Obligate aerial insectivore; gathers small flying insects, winged ants, and airborne spiders during flight. |
| Số Trứng | -- | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Papuan Spinetail
Rapid buzzy twittering; sharp 'tsit-tsit-tsit' in low speedy flight; calls in tight flocks over New Guinea forest and rivers; wings produce audible whirring sound in fast flight
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
Papuan Spinetail
Found in New Guinea from the northern coast to central ranges. Resident in lowland and hill forest along rivers and forest edge up to 1,500 m.
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.
Tình Trạng Bảo Tồn
Papuan Spinetail
White-collared Swift
How to Tell Them Apart
Papuan Spinetail
Dark blackish-brown upperparts; paler brownish-grey underparts; pale chin; short spiny tail with projecting shaft tips; New Guinea species; larger than Philippine Spinetail with broader wings relative to body; robust spinetail …
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
Papuan Spinetail
A large spinetail swift (12-14 cm) found in New Guinea and nearby islands. Dark plumage with spine-tipped tail feathers used for bracing against vertical surfaces. Aerial insectivore, foraging over forest. Nests in tree hollows. Limited ecological data.
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.