This small swift is about 12 cm long and occurs on Madagascar and Grand Comoro in the Comoro Islands. It catches insects in the air by day.
It is about 12 cm long.
By day, it catches insects while flying through the air.
It nests in tree hollows, wells or rock niches, using plant material and twigs.
At Nioumbadjou on Grand Comoro, counts in 1989 were higher than in the comparison survey in 1985.
It has black-brown upperparts, a heavily streaked white rump and pale grey-brown underparts.
The wing bulges in the middle and hooks towards the outer part. The tail tip is square.
An extinction-risk assessment has not been added yet.