Polynesian Swiftlet vs African Palm Swift
Aerodramus leucophaeus comparado con Cypsiurus parvus
Side-by-Side Comparison
| Atributo | Polynesian Swiftlet | African Palm Swift |
|---|---|---|
| Nombre científico | Aerodramus leucophaeus | Cypsiurus parvus |
| Orden | Caprimulgiformes | Caprimulgiformes |
| Familia | Apodidae | Apodidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 23,7 cm (9.3 in) | 27,2 cm (10.7 in) |
| Peso | 13,4 g (0.47 oz) | 14,38 g (0.51 oz) |
| Dieta | Aerial insectivore catching tiny flying insects, midges, and airborne spiders in fast low-altitude flight near … | Exclusively aerial diet; consumes tiny flying insects and spiders, sometimes following insect swarms for km. |
| Tamaño de la puesta | 2 | 1-3 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
Polynesian Swiftlet only
Ninguno
African Palm Swift only
Song & Call Comparison
Polynesian Swiftlet
High twittering; thin 'chip-chip' over French Polynesian islands; echolocation clicks in cave roosts; light-colored underparts distinguish it visually; calls unremarkable
African Palm Swift
Deep, hollow churring trill with resonant bass quality; prolonged vibrating call audible at significant range in open woodland.
Geographic Range & Migration
Polynesian Swiftlet
Found across French Polynesia including the Society Islands, Marquesas, and Tuamotu. Resident in forest and open areas; nests in sea caves.
African Palm Swift
Found across sub-Saharan Africa from Senegal east to Somalia and south to South Africa. Common in open areas near palms; nests in palm leaves.
Estado de conservación
Polynesian Swiftlet
African Palm Swift
How to Tell Them Apart
Polynesian Swiftlet
Small; dark brown-grey upperparts with minimal gloss; pale grey rump band; underparts whitish-grey; forked tail; East Polynesian endemic from Society Islands; slightly more uniformly dark than some Pacific congeners.
African Palm Swift
Slender and long-tailed; uniformly pale greyish-brown overall; underparts paler grey-buff; long deeply forked tail; pale uniform appearance with no contrasting markings; widespread African palm-nesting swift with distinctive slender silhouette.
About These Birds
Polynesian Swiftlet
El vencejo de la Polinesia habita en las islas de la Polinesia francesa. Nidifica en cuevas y escarpes rocosos. Vulnerable a los cambios medioambientales y los depredadores introducidos. Familia Apodidae.
African Palm Swift
A slender swift (15-17 cm) with long, narrow wings and a deeply forked tail. Dark brown plumage. Found across sub-Saharan Africa in savanna and open woodland, closely associated with palm trees. Aerial insectivore. One of Africa's most abundant swift species.