Small with a tube or cigar-shaped body, long, arched wings, and a short tail. Brownish overall with a paler chest and slightly paler rump.© Joachim Bertrands | Macaulay LibraryCalifornia, May 03, 2018
Small with a tube or cigar-shaped body, long, arched wings, and a short tail. Brownish overall with a paler chest and slightly paler rump.© Steve Kolbe | Macaulay LibraryCalifornia, April 26, 2015
Roosts in groups (sometimes very large groups) in chimneys, hollowed-out standing trees and other vertical openings. At dusk, swirling masses collect as the birds prepare to go inside.© Tom Johnson | Macaulay LibraryCalifornia, September 08, 2014
Nests and roosts in hollow trees in evergreen or mixed forests as well as chimneys, especially during migration where thousands of Vaux's Swifts will funnel into a chimney for the night.© Sharyn Isom | Macaulay LibraryOregon, September 26, 2019
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