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 sometime
Chaetura pelagica, by Lake Erie, Cleveland, Ohio, USA 339593191
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.
Vaux's swift is a small swift native to North America, Central America, and northern South America. It was named for the American scientist William Sansom Vaux.
Chimney swift
…The chimney swift (Chaetura pelagica) 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…
Vaux's Swift La Paz Costa Rica MG 1768
Up-close photo of Vaux's swift
Vaux's swifts at Chapman Elementary in Portland