Cypsiurus

Cypsiurus is a genus of the swift family of birds.

Cypsiurus
African palm swift
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Clade:	Strisores
Order:	Apodiformes
Family:	Apodidae
Tribe:	Apodini
Genus:	Cypsiurus Lesson, RP, 1843
Type species
Cypselus ambrosiacus[1] Temminck, 1828
Species
C. balasiensis C. parvus C. gracilis

There are three species

• Asian palm swift, Cypsiurus balasiensis
• African palm swift, Cypsiurus parvus
• Malagasy palm swift, Cypsiurus gracilis

These very similar species were formerly considered to be conspecific.

They have mainly pale brown plumage and long swept-back wings that resemble a crescent or a boomerang. The body is slender, and the tail is long and deeply forked, although it is usually held closed. The sexes are similar, and young birds differ from adults mainly in their shorter tails. Palm swifts have very short legs which they use only for clinging to vertical surfaces, since swifts never settle voluntarily on the ground.

These swifts spend most of their lives in the air, living on flying insects. Palm swifts often feed near the ground, and they drink on the wing.