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A migratory hawk (Buteo swainsoni) of the Americas, having long pointed wings and feeding primarily on insects.
[After William Swainson (1789-1855), British naturalist.]
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.