login

Have Cowbirds Caused Forest Songbirds to Decline?

BioSciencePublished 1 January 1983
Margaret C. Brittingham, Stanley A. Temple
Citations609
SJR quartileQ1
SJR score2.37
SNIP2.73

TL;DR

Brown-headed cowbird populations and their rate of brood parasitism on forest songbirds in eastern North America have increased since 1900 and may be responsible for their recent declines.

Abstract

Brown-headed cowbird populations and their rate of brood parasitism on forest songbirds in eastern North America have increased since 1900. Brood parasitism of forest songbirds is highest near open habitat. High brood parasitism rates within isolated fragments of forest habitat reduce reproductive success of certain forest songbirds and may be responsible for their recent declines.

Keywords

Environmental Science