Sunday, March 15, 2015

Mourning Warbler

As I have written before, Mourning Warblers are common, but elusive migrants across much of central and eastern North America. They often feed on or near the ground in early succession habitat. This habitat is hard for birders to penetrate, but is good news for the warbler. Clearings and regrowth often occur after logging (and other human-created activities) or fires. Pitocchelli (2011) reports that Mourning Warblers colonize new clearings within two years after being created, but begin to decline after severn years. Even in their South American winter range, these warblers prefer tangled, disturbed areas. Pitocchelli writes, “This warbler may be one of North America’s few Neotropical migrants that has benefited from human disturbance.”

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