Papuan Swiftlet vs Alpine Swift
Aerodramus papuensis เปรียบเทียบกับ Tachymarptis melba
Side-by-Side Comparison
| คุณสมบัติ | Papuan Swiftlet | Alpine Swift |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Aerodramus papuensis | Tachymarptis melba |
| อันดับ | Caprimulgiformes | Caprimulgiformes |
| วงศ์ตระกูล | Apodidae | Apodidae |
| สถานะการอนุรักษ์ | Data Deficient | Least Concern |
| ความยาว | — | — |
| กว้างปีก | 26.5 cm (10.4 in) | 43.9 cm (17.3 in) |
| น้ำหนัก | 20.4 g (0.72 oz) | 97.5 g (3.44 oz) |
| อาหาร | Feeds aerially on tiny flying insects and drifting spiders; often forages in mixed-species flocks over … | Aerial insectivore taking small flying insects and spiders; may forage at great heights following thermal … |
| จำนวนไข่ | -- | 1-4 |
| Population Trend | — | — |
Song & Call Comparison
Papuan Swiftlet
High thin twittering; 'tsit-tsit' over New Guinea; echolocation clicks used in cave roosts; larger than many swiftlets; slightly deeper calls; data deficient in recordings
Alpine Swift
Rapid series of short, clipped whistles; bright, clean notes delivered in quick succession with occasional doubled phrase.
Geographic Range & Migration
Papuan Swiftlet
Found in lowland New Guinea and the Bismarck Archipelago. Resident in lowland rainforest and forest edge. Little-known Papuan endemic.
Alpine Swift
Breeds from southern Europe and North Africa east through Central Asia and the Himalayas to India. Migratory; winters in sub-Saharan Africa.
สถานะการอนุรักษ์
Papuan Swiftlet
Alpine Swift
How to Tell Them Apart
Papuan Swiftlet
Small; dark brownish-grey upperparts; pale grey rump band; underparts pale grey; forked tail; New Guinea swiftlet; large for the genus; data-deficient with limited specimens; rump band moderately contrasting with dark …
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 Swiftlet
A small swiftlet (11-12 cm) found in lowland and hill forests of New Guinea. Dark plumage with a slightly pale rump. Aerial insectivore. Colonial cave nester using echolocation. Closely related to the Edible-nest Swiftlet. Limited published 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.