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A swallow (Petrochelidon pyrrhonota) of North and South America that builds a bottle-shaped nest of mud and twigs on cliffs or under eaves.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Animals) an American swallow, Petrochelidon pyrrhonota, that has a square-tipped tail and builds nests of mud on cliffs, walls, etc
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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|Noun||1.||cliff swallow - North American swallow that lives in colonies and builds bottle-shaped mud nests on cliffs and walls|
swallow - small long-winged songbird noted for swift graceful flight and the regularity of its migrations
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