OSU Navigation Bar

The Ohio State University University Libraries Knowledge Bank

Sex-Specific Feeding Habits of Brown-Headed Cowbirds in Northern Ohio in January

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/23071

Show simple item record

Files Size Format View
V085N3_104.pdf 285.4Kb PDF View/Open

dc.creator Dolbeer, Richard A. en_US
dc.creator Smith, C. R. en_US
dc.date.accessioned 2006-07-07T02:14:20Z
dc.date.available 2006-07-07T02:14:20Z
dc.date.issued 1985-06 en_US
dc.identifier.citation The Ohio Journal of Science. v85, n3 (June, 1985), 104-107 en_US
dc.identifier.issn 0030-0950 en_US
dc.identifier.uri http://hdl.handle.net/1811/23071
dc.description Author Institution: U.S. Fish and Wildlife Service, Denver Wildlife Research Center en_US
dc.description.abstract We examined the stomach contents of 57 brown-headed cowbirds (Molothrus ater) collected from a roost in Erie Co., Ohio, on 12 January 1983. Corn was by far the predominant food, averaging 66% of the stomach contents by weight. Seeds from at least five grasses, but primarily Setaria spp., were the second most abundant food category, averaging 21% of the stomach contents. Ragweed {Ambrosia artemisiifolia) seeds (2.6%) were third. Male cowbirds consumed more corn than did the smaller females, whereas females consumed more of the smaller grass seeds. The abundance of corn in harvested fields and feedlots, combined with mild winter conditions, probably were the primary reasons cowbirds could overwinter several hundred kilometers north of their usual winter range. en_US
dc.format.extent 292254 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US
dc.title Sex-Specific Feeding Habits of Brown-Headed Cowbirds in Northern Ohio in January en_US