Papuan Spinetail vs Alpine Swift
Mearnsia novaeguineae comparado com Tachymarptis melba
Side-by-Side Comparison
| Atributo | Papuan Spinetail | Alpine Swift |
|---|---|---|
| Nome científico | Mearnsia novaeguineae | Tachymarptis melba |
| Ordem | Caprimulgiformes | Caprimulgiformes |
| Família | Apodidae | Apodidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | — | — |
| Envergadura | 26,0 cm (10.2 in) | 43,9 cm (17.3 in) |
| Peso | 34,0 g (1.20 oz) | 97,5 g (3.44 oz) |
| Dieta | High-speed aerial insectivore catching small flying insects and aerial spiders during fast sustained flight. | Aerial insectivore taking small flying insects and spiders; may forage at great heights following thermal … |
| Tamanho da postura | -- | 1-4 |
| 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
Alpine Swift
Rapid series of short, clipped whistles; bright, clean notes delivered in quick succession with occasional doubled phrase.
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.
Alpine Swift
Breeds from southern Europe and North Africa east through Central Asia and the Himalayas to India. Migratory; winters in sub-Saharan Africa.
Estado de conservação
Papuan Spinetail
Alpine 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 …
Alpine Swift
Large; dark brown upperparts; white throat patch separated from white belly by dark brown breast band; brown flanks; bold tricoloured underpart pattern; one of Europe's largest swifts with distinctive white …
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.
Alpine Swift
A large swift (20-22 cm, wingspan 54-60 cm) with a white belly and throat contrasting with dark brown upperparts. Found from southern Europe and Africa to Central Asia. Aerial insectivore, foraging at great heights. Nests on cliff faces in large colonies. Powerful, fast flier.