U.S. Department of Agriculture: Animal and Plant Health Inspection Service


Date of this Version

July 2003


Published by J. Field Ornithol. 74(3):288–292, 2003.


Predation has consistently been identified as the most common cause of nest failure for Red-winged Blackbirds (Agelaius phoeniceus). During May and June, 2000 and 2001, we used infrared-triggered camera systems to identify potential nest predators on artificially relocated Red-winged Blackbird nests in eastern North Dakota. For some of the species observed, these observations represent the first documentation of predation on Red-winged Blackbird nests in the northern Great Plains.