Nest Sharing Between an American Robin and a Northern Cardinal

Paul W. Govoni; Keith S. Summerville; Muir D. Eaton

doi:10.1676/08-093.1

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Paul W. Govoni,^*,** Keith S. Summerville,^*,*** Muir D. Eaton^****

^* Department of Environmental Science, Drake University, Des Moines, IA 50311, USA
^** Current address: 5800 NE 6th Street, Des Moines, IA 50313, USA
^*** Corresponding author; keith.summerville@drake.edu
^**** Department of Biology, Drake University, Des Moines, IA 50311, USA

Abstract

Mixed-clutch nest sharing was observed between an American Robin (Turdus migratorius) and a Northern Cardinal (Cardinalis cardinalis) in Saylor Township, Polk County, Iowa in May 2007. The nest contained three American Robin eggs and two Northern Cardinal eggs, but only American Robin young were fledged successfully. This was not a case of brood parasitism, as both females were observed alternating incubation of the nest. Competition for desirable nest sites might be a possible cause for this type of interspecific behavior.

Citation Download Citation

Paul W. Govoni, Keith S. Summerville, and Muir D. Eaton "Nest Sharing Between an American Robin and a Northern Cardinal," The Wilson Journal of Ornithology 121(2), 424-426, (1 June 2009). https://doi.org/10.1676/08-093.1

Received: 17 July 2008; Accepted: 1 October 2008; Published: 1 June 2009

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