Great Dusky Swift
Cypseloides senex
The Great Dusky Swift is a species of swift in the Apodidae family.
It is found in Argentina, Bolivia, Brazil, and Paraguay. Its natural habitats are temperate forests, subtropical or tropical moist lowland forests, and heavily degraded former forest.
It is found in Argentina, Bolivia, Brazil, and Paraguay. Its natural habitats are temperate forests, subtropical or tropical moist lowland forests, and heavily degraded former forest.