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Swainson's hawk

[sweyn-suh nz]
noun
  1. a migratory hawk, Buteo swainsoni, of western North America, that winters in southern South America.
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Origin of Swainson's hawk

1890–95, Americanism; named after William Swainson (1789–1855), English naturalist
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018