(Shadow Falls, Shoshone County, Idaho; July 26, 2012.) © Spring Fed Images. (Pemberton, British Columbia; June 28, 2019.) © Amy McAndrews, American Black Swift, C. n. borealis, with wings held out straight and tail appearing rounded or square when folded.

The may use other material, such as ferns and seaweed, depending on what is available.

(Stanley Park, Vancouver, British Columbia; July 23, 2019.) At times may feed heavily on emerging swarms of winged adult ants or termites. American Black Swift is about 2 to 3 cm longer (about 18 cm versus 15 cm) and its wingspan is about 5 to 6 cm longer (about 36 cm versus 30 cm) than White-chinned. The American black swift or more simply black swift (Cypseloides niger), is a species of swift that are found from northern British Columbia in Canada through the United States and Mexico to Costa Rica and Brazil. © Casey Weissburg, American Black Swift, C. n. borealis. On the face: the forehead and brow often appear sharply paler, either pale-brown or whitish. In flight, these birds resemble a flying cigar with long slender curved wings. Schulenberg, T.S., D.F. 1986. (Pemberton, British Columbia; June 28, 2019.) Often fans tail in flight. American Black Swift usually shows a notch in its tail, when folded. © Frank Lin, American Black Swift, C. n. borealis, appearing atypically short and plump. American Black Swift (Cypseloides niger) Vulnerable Range: NA, MA info. The American Black Swift -- commonly referred to as "Black Swift" (Cypseloides niger) - is North America’s largest swift that is mostly found in mountainous regions of the western United States and Canada. © Daniel Tinoco, American Black Swift, C. n. borealis, showing pale spotting and a white belly-band, and tail appearing square when folded. Feeds on a wide variety of flying insects, including wasps, flies, mayflies, caddisflies, beetles, and others, also spiders. © Daniel Tinoco, American Black Swift, C. n. borealis, with tail appearing rounded. © Michael Bolte, American Black Swift, C. n. borealis, showing somewhat paler throat in this lighting, and tail appearing rounded when fanned out. You are free to copy, distribute and transmit the work, and to adapt the work under the following conditions:

(Vancouver, British Columbia; June 7, 2020.) They typically migrate in large flocks. (Accessed September 12, 2020. The American black swift or more simply black swift (Cypseloides niger), is a species of swift that are found from northern British Columbia in Canada through the United States and Mexico to Costa Rica and Brazil. This large, black swift nests on dark and inaccessible ledges, often behind waterfalls, but much of the rest of its life is shrouded in mystery. 2014. The nest is made of twigs, glued together with mud. (Santa Cruz, California; September 14, 2013.) 2006. Breeding Bird Survey Abundance Map: American Black Swift. Black Swifts are mysterious birds. White-fronted also differs in having a well-defined white (not just whitish) forehead and chin. Across the Neotropical portions of its range, it is intermediate in size between two much commoner groups of swifts, the very large Streptoprocne (especially White-collared) and the small Chaetura swifts and palm-swifts. Cypseloides niger. Can appear all-black, as its name suggests, in some plumages and lighting, but often shows contrasting pale areas on the face and underparts. They are similar in shape and overall coloration, though White-fronted is significantly smaller (closer to Chaetura size) and would rarely if ever show a notched tail. © Daniel Tinoco, American Black Swift, C. n. borealis, showing apparent pale spotting on the belly and flanks. Please Note: The articles or images on this page are the sole property of the authors or photographers.

2012. The National Audubon Society protects birds and the places they need, today and tomorrow, throughout the Americas using science, advocacy, education, and on-the-ground conservation. © Luis Iturriaga Morales, American Black Swift, C. n. borealis, showing somewhat paler throat and whitish forehead in this lighting, and characteristic flight silhouette: long wings, long body, and notched tail. It remains unclear where most of the birds spend the winter, although some of the birds have been tracked as far south as Brazil, migrating there from Colorado. Distribution: North America, Middle America. A Guide to the Birds of Panama (Second Edition).

The plumage is mostly dark grey; although there is a contrast between the upper and lower wings. Breeding. (Port Susan Bay Preserve, Stanwood, Washington; June 3, 2010.) A Guide to the Birds of Mexico and Northern Central America. The American Swift averages 7 inches in length. Dunn. Audubon, https://www.audubon.org/magazine/september-october-2012/out-shadows-black-swifts-north. Copyright and usage info: This file is licensed under the Creative Commons Attribution ShareAlike 4.0 License. A Guide to the Birds of the West Indies. Adults spend the night roosting at or near the nest site. Sibley, D.A. Stiles, F.G., and A.J. Legal Notices Privacy Policy Contact Us. They are similar in shape, including the notched tail, though Chestnut-collared is significantly smaller (closer to Chaetura size). You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work) (Sepulveda Basin Wildlife Reserve, Van Nuys, California; May 18, 2018.) (Salmon Arm, British Columbia; June 4, 2018.) © Chao “Jimmy” Wu, American Black Swift, C. n. borealis. Sites where it has been recorded include Fort Morgan, Alabama (mid-April), Point Pelee and Long Point, Ontario (both mid-May), Cape May, New Jersey (late August), and Bermuda (twice in mid-May). 1995.

The Birds of Alberta. Chattering call notes lower-pitched than other swifts in range. The plumage is mostly dark grey; although there is a contrast between the upper and lower wings.

In Costa Rica, it is seen year-round in several areas, including the San José metropolitan area and Volcán Arenal National Park. After the breeding season, the American Black Swifts migrate out of North America. They are also found on islands in the West Indies. Where it occurs, it may be seen flying very high, gliding and wheeling gracefully in pursuit of flying insects. © Jim Tietz, American Black Swift, C. n. borealis, head-on. Where it occurs, it may be seen flying very high, gliding and wheeling gracefully in pursuit of flying insects. Black Swifts are now known to nest in sea caves as well as behind waterfalls. Audubon’s scientists have used 140 million bird observations and sophisticated climate models to project how climate change will affect this bird’s range in the future. Open sky over mountains, coastal cliffs.

The Black Swift seems to be limited in range by its very particular choice of nesting sites: it requires shady, sheltered spots on vertical cliffs totally inaccessible to predators, and often nests on the damp rock behind waterfalls. A medium-large, dark-brown swift with a fairly long tail, typically with a discernible notch. Spread the word. Vagrants occasionally stray to eastern North America, though there are relatively few confirmed records. Chantler, P. 2000. Latta, S., C. Rimmer, A. Keith, J. Wiley, H. Raffaele, K. McFarland, and E. Fernandez. White-chinned Swift. The highest breeding densities are in southwestern British Columbia (see Breeding Bird Survey Abundance Map in Notes, below), where it can be found at many sites in and around Vancouver, on Vancouver Island, and in the interior. Polytypic species consisting of three recognized subspecies. Photo: Dick Dickinson/Audubon Photography Awards, Adult. (Central Saanich, British Columbia; August 3, 2020.) © David Tønnessen, American Black Swift, C. n. borealis, showing how the angle of lighting can affect apparent coloration, and tail appearing rounded when fanned out. Resplendent Quetzals - The Rare Jewel Birds of the World.

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