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Any of various blackbirds of the genus Molothrus, especially the common North American species M. ater, that lay their eggs in the nests of other birds and are often seen accompanying herds of grazing cattle.
[From their habit of staying with cattle.]
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) any of various American orioles of the genera Molothrus, Tangavius, etc, esp M. ater (common or brown-headed cowbird). They have a dark plumage and short bill
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
any blackbird of the genera Molothrus and Schapidura, noted for their brood parasitism, esp. the common North American species M. ater.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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|Noun||1.||cowbird - North American blackbird that follows cattle and lays eggs in other birds' nests|
blackbird, New World blackbird - any bird of the family Icteridae whose male is black or predominantly black
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