The chimney swift is a bird belonging to the swift family Apodidae. A member of the genus Chaetura, it is closely related to both Vaux's swift and Chapman's swift; in the past, the three were sometimes considered to be conspecific. It has no subspecies. The chimney swift is a medium-sized, sooty gray bird with very long, slender wings and very short legs. Like all swifts, it is incapable of perching, and can only cling vertically to surfaces. Many fly around all day and only come down at night when roosting.
Chimney swift
Chimney swifts, like these in a chimney in Missouri, United States, roost communally when not breeding.
Egg, Collection Museum Wiesbaden
The nest is made of small, short twigs glued together with saliva.
Chapman's swift is a species of bird in subfamily Apodinae of the swift family Apodidae. It is found in Bolivia, Brazil, Colombia, French Guiana, Guyana, Panama, Peru, Suriname, Trinidad, Venezuela, and possibly Ecuador.
Chapman's swift