Evidence for Bachman's Sparrow Raising Brown-headed Cowbirds to Fledging

Matthew J. Reetz; Elizabeth Farley; Thomas A. Contreras

doi:10.1676/07-149.1

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Matthew J. Reetz,^*,** Elizabeth Farley,^*** Thomas A. Contreras^****

^*Department of Wildlife Ecology and Conservation, University of Florida, P. O. Box 110430, Gainesville, FL 32611, USA
^**Corresponding author; aves@ufl.edu
^***Department of Biology, University of Texas at Tyler, 3900 University Boulevard, Tyler, TX 75799, USA
^****Department of Biology, Washington and Jefferson College, 60 South Lincoln Street, Washington, PA 15301, USA

Abstract

We report the first records of Brown-headed Cowbirds (Molothrus ater) raised to fledging by Bachman's Sparrow (Aimophila aestivalis). Records are based on field observations of parasitized sparrow nests monitored during two separate avian reproductive studies. One record is of a Bachman's Sparrow nest in southwestern Florida in 2002 and four records are of unpublished data from sparrow nests in central Arkansas during 1983–1985. These observations suggest that Bachman's Sparrow can successfully raise cowbird young. Ours is also the first record of a parasitized Bachman's Sparrow nest in Florida.

Citation Download Citation

Matthew J. Reetz, Elizabeth Farley, and Thomas A. Contreras "Evidence for Bachman's Sparrow Raising Brown-headed Cowbirds to Fledging," The Wilson Journal of Ornithology 120(3), 625-627, (1 September 2008). https://doi.org/10.1676/07-149.1

Received: 5 October 2007; Accepted: 1 January 2008; Published: 1 September 2008

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