We report an observation of a Marsh Wren (Cistothorus palustris) eating a small fish. On 29 November 2008, a Marsh Wren was observed catching and consuming a small fish, probably a mosquitofish (Gambusia affinis), in a coastal marsh in Jefferson County, Texas. Marsh Wrens are known to eat invertebrates, primarily insects and spiders, and we believe this is the first record of a Marsh Wren capturing and consuming vertebrate prey.

2010 by the Wilson Ornithological Society
2010
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