Saturday, May 25, 2013

Yellow Warbler

Yellow Warbler - Dendroica petechia 

The species name refers to the red spots. 
Yellow Warblers prefer willow thickets close to water. The willows along the Elbow River offer good nesting sites. This male Yellow Warbler was feeding on Aspen seeds in the Elbow Valley Constructed Wetland.
Yellow Warblers are frequent victims of Brown Cowbird parasitism. These birds, however, can recognize the intruder egg and the response is to build a new nest on top of all the existing eggs (warbler and cowbird) and to lay new eggs. Five layers have been reported! 


The Atlas of Breeding Birds of Alberta. Federation of Alberta Naturalists. 2007.

Baicich PJ, Harrison CJO. Nests, Eggs, and Nestlings of North American Birds. Princeton UP. 2005.

Beadle D, Rising J. Sparrows of the United States and Canada. Princeton UP. 2003.

Fisher C, Acorn J. Birds of Alberta. Lone Pine Publishing. Edmonton. 1998.

Sibley David A. The Sibley Guide to Bird Life and Behavior. Alfred A Knopf, Inc. New York. 2001.

Tudge Colin. The Bird. Crown Publishers. New York. 2008.

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