Sora (Porzana carolina) Parasitism of Red-winged Blackbird (Agelaius phoeniceus) Nests

Authors

DOI:

https://doi.org/10.22621/cfn.v131i4.1898

Keywords:

Sora, Porzana carolina, Red-winged Blackbird, Agelaius phoeniceus, brood parasitism, North Dakota

Abstract

Sora (Porzana carolina) is a conspecific brood parasite that also occasionally parasitizes nests of other species. Sora parasitism in nests of passerines is rare. Of 129 Red-winged Blackbird (Agelaius phoeniceus) nests found in North Dakota in 2009 and 2010, two (1.6%) were parasitized by Soras. The conditions favouring this rare parasitic behaviour may include competition for nest sites and high Sora density.

Author Biography

Lawrence D. Igl, U.S. Geological Survey, Northern Prairie Wildlife Research Center

Research Ecologist at U.S. Geological Survey

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Published

2018-05-23

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