Mascarene Swiftlet vs African Palm Swift
Aerodramus francicus compared with Cypsiurus parvus
Side-by-Side Comparison
| Attribute | Mascarene Swiftlet | African Palm Swift |
|---|---|---|
| Scientific Name | Aerodramus francicus | Cypsiurus parvus |
| Order | Caprimulgiformes | Caprimulgiformes |
| Family | Apodidae | Apodidae |
| Conservation Status | Near Threatened | Least Concern |
| Length | — | — |
| Wingspan | 21.8 cm (8.6 in) | 27.2 cm (10.7 in) |
| Weight | 10.419999999999998 g (0.37 oz) | 14.38 g (0.51 oz) |
| Diet | Aerial insectivore consuming minute dipterans, midges, and ballooning spiders caught in continuous fast flight. | Exclusively aerial diet; consumes tiny flying insects and spiders, sometimes following insect swarms for km. |
| Clutch Size | 1-2 | 1-3 |
| Population Trend | — | — |
Habitat Comparison
Shared Habitats
Mascarene Swiftlet only
None
African Palm Swift only
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
African Palm Swift
Deep, hollow churring trill with resonant bass quality; prolonged vibrating call audible at significant range in open woodland.
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.
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.
Conservation Status
Mascarene Swiftlet
African Palm 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.
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
Mascarene Swiftlet
A small swiftlet (10-11 cm) endemic to Mauritius and Réunion in the western Indian Ocean. Dark brown plumage. Aerial insectivore, foraging over forest and agricultural areas. Colonial cave nester using echolocation for navigation. Population stable but geographically restricted.
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.