Mascarene Swiftlet vs Alpine Swift
Aerodramus francicus comparado con Tachymarptis melba
Side-by-Side Comparison
| Atributo | Mascarene Swiftlet | Alpine Swift |
|---|---|---|
| Nombre científico | Aerodramus francicus | Tachymarptis melba |
| Orden | Caprimulgiformes | Caprimulgiformes |
| Familia | Apodidae | Apodidae |
| Estado de conservación | Near Threatened | Least Concern |
| Longitud | — | — |
| Envergadura | 21,8 cm (8.6 in) | 43,9 cm (17.3 in) |
| Peso | 10,419999999999998 g (0.37 oz) | 97,5 g (3.44 oz) |
| Dieta | Aerial insectivore consuming minute dipterans, midges, and ballooning spiders caught in continuous fast flight. | Aerial insectivore taking small flying insects and spiders; may forage at great heights following thermal … |
| Tamaño de la puesta | 1-2 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Mascarene Swiftlet
Thin, rapid chittering; soft 'tsit' notes over Reunion and Mauritius; echolocation clicks in cave roosts; endemic island species; calls weakly; colonial roosting produces faint noise
Alpine Swift
Rapid series of short, clipped whistles; bright, clean notes delivered in quick succession with occasional doubled phrase.
Geographic Range & Migration
Mascarene Swiftlet
Endemic to the Mascarene Islands of Réunion and Mauritius in the southwestern Indian Ocean. Nests in sea caves and rock crevices.
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 conservación
Mascarene Swiftlet
Alpine Swift
How to Tell Them Apart
Mascarene Swiftlet
Small; dark blackish-brown upperparts with slight greenish gloss; pale buff-grey rump band; pale grey-white underparts; forked tail; Mascarene Island endemic of Réunion and Mauritius with slightly dusky-toned underparts.
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
Mascarene Swiftlet
El vencejo de Mascarena es endémico de las islas Mascareñas en el Océano Índico. Habita sobre los bosques nativos y nidifica en cuevas. Familia Apodidae.
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.