Simple cup constructed of felt-like substance made from a variety of materials gathered on the wing, stuck together with gluelike saliva. Attached to vertical cliff wall or on ledge.
White-throated Swift populations appear to have declined across much of their range between 1966 and 2015, according to the North American Breeding Bird Survey. Partners in Flight estimates a global breeding population of 1.1 million with 67% spending part of the year in the U.S., 64% in Mexico, and 1% breeding in Canada. The species rates an 11 out of 20 on the Continental Concern Score and is not on the 2016 State of North America's Birds Watch List. Back to top
Lutmerding, J. A. and A. S. Love. Longevity records of North American birds. Version 2015.2. Patuxent Wildlife Research Center, Bird Banding Laboratory 2015.
Partners in Flight. 2017. Avian Conservation Assessment Database. 2017.
Ryan, Thomas P. and Charles T. Collins. 2000. White-throated Swift (Aeronautes saxatalis), version 2.0. In The Birds of North America (P. G. Rodewald, editor). Cornell Lab of Ornithology, Ithaca, New York, USA.
Sauer, J. R., D. K. Niven, J. E. Hines, Jr. Ziolkowski, D. J., K. L. Pardieck, J. E. Fallon and W. A. Link. The North American breeding bird survey, results and analysis 1966-2015 (Version 2.07.2017). USGS Patuxent Wildlife Research Center 2017.
Sibley, David Allen. 2014. The Sibley guide to birds, second edition. Alfred A Knopf, New York.