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Cowbird Parasitism of the Northern Yellow-Throat

โœ Scribed by P. B. Hofslund

Book ID
124611859
Publisher
University of California Press
Year
1957
Tongue
English
Weight
218 KB
Volume
74
Category
Article
ISSN
0004-8038

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Brown-headed cowbirds (Molothrus ater) parasitized yellow warblers (Dendroica petechia) six times more frequently than least flycatchers (Ernpidonax minimus) nesting in the same riparian habitat in southern Manitoba. This difference was surprising because least flycatchers were higher quality hosts;