We report the first record of Bronzed Cowbird (Molothrus aeneus) brood parasitism on the year-round resident Golden-crowned Warbler (Basileuterus culicivorus). Our observations represent the 105th known host species for this cowbird species and the ninth known host species from the Family Parulidae. Our assignment of these records to the true host list are based on observations of a pair of Golden-crowned Warblers feeding caterpillars to a Bronzed Cowbird fledgling in a shade coffee plantation in Zentla, Veracruz, Mexico.
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29 December 2021
First record of brood parasitism between Bronzed Cowbird (Molothrus aeneus) and Golden-crowned Warbler (Basileuterus culicivorus)
Macario Fernández-Popo,
Fernando González-García,
Diego Santiago-Alarcon
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The Wilson Journal of Ornithology
Vol. 133 • No. 2
June 2021
Vol. 133 • No. 2
June 2021
blackbirds
brood parasitism
host and victim
Parulidae
resident bird
Veracruz avifauna