Square-tailed saw-wing

The square-tailed saw-wing (Psalidoprocne nitens), also known as the square-tailed rough-winged swallow is a species of bird in the family Hirundinidae. It is native to the African tropical rainforest.

Description

It is dark green, almost black.

Subspecies

There are currently two recognised subspecies.

• P. n. nitens, the nominate subspecies, which occurs in Guinea, Sierra Leone, Ivory Coast, Ghana, Togo, Nigeria, Gabon, Congo and Angola.
• P. n. centralis, which occurs in northeast Democratic Republic of the Congo.

References