Pallid Swift vs Brown-backed Needletail
Apus pallidus comparado con Hirundapus giganteus
Side-by-Side Comparison
| Atributo | Pallid Swift | Brown-backed Needletail |
|---|---|---|
| Nombre científico | Apus pallidus | Hirundapus giganteus |
| Orden | Caprimulgiformes | Caprimulgiformes |
| Familia | Apodidae | Apodidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 33,4 cm (13.1 in) | 40,6 cm (16.0 in) |
| Peso | 42,25 g (1.49 oz) | 145,0 g (5.11 oz) |
| Dieta | Aerial insectivore foraging continuously in flight, taking tiny flies, beetles, and ballooning spiders. | Aerial insectivore feeding on tiny flies, beetles, and ballooning spiders in rapid powerful aerial pursuit. |
| Tamaño de la puesta | 1-4 | 3-5 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
Ninguno
Pallid Swift only
Song & Call Comparison
Pallid Swift
Melodic, rolling trill with rich timbre; sustained musical phrase with slight variations on repeated delivery at dusk.
Brown-backed Needletail
Rough, buzzy chatter with intermittent higher squeaks; coarse twittering delivered continuously throughout aerial foraging.
Geographic Range & Migration
Pallid Swift
Breeds in the Mediterranean and North Africa east to Pakistan. Migratory; winters in sub-Saharan Africa from Senegal to Ethiopia.
Brown-backed Needletail
Found from India and Sri Lanka through Southeast Asia to Borneo and the Philippines. Resident in lowland and hill forest, soaring over ridges.
Estado de conservación
Pallid Swift
Brown-backed Needletail
How to Tell Them Apart
Pallid Swift
Medium-large; pale brownish-grey overall, distinctly paler than Common Swift; larger pale throat patch; wing coverts show pale scaly edges; Mediterranean and Middle Eastern species; pale sandy-brown tone separates it from …
Brown-backed Needletail
Very large; dark brown upperparts with bronze gloss; no pale back saddle unlike congeners; white throat patch; white undertail coverts; short spiny tail; largest Hirundapus; brown rather than black overall …
About These Birds
Pallid Swift
A medium-sized swift (16-17 cm) similar to Common Swift but paler, sandy-brown overall with a larger white throat patch. Found across southern Europe, North Africa, and the Middle East. Aerial insectivore. Long-distance migrant wintering in sub-Saharan Africa and South Asia.
Brown-backed Needletail
El vencejo de aguja marrón es el vencejo más grande del mundo, con una envergadura de hasta 58 cm. Habita en el sur y sudeste de Asia, desde India hasta las islas del Pacífico. Tiene alas largas y estrechas, una garganta marrón oscura y una mancha en la rabadilla. Captura insectos y arañas al vuelo. Anida en grietas de acantilados. A menudo se observa en grandes altitudes, especialmente sobre las montañas.