Egg rejection behavior does not explain the lack of cowbird parasitism on an eastern North American population of Red-winged Blackbirds

Abstract Background Red-winged Blackbirds (Agelaius phoeniceus), hereafter red-wings, are much less frequently parasitized by Brown-headed Cowbirds (Molothrus ater) in eastern North America than in central North America and had not been recorded as hosts in our study area in southeastern Pennsylvani...

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Bibliographic Details
Main Authors: Justin J. Reel, Todd J. Underwood
Format: Article
Language:English
Published: BMC 2019-12-01
Series:Avian Research
Subjects:
Online Access:https://doi.org/10.1186/s40657-019-0186-1