Square-tailed saw-wing
The square-tailed saw-wing, 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.