Migratory Birds of the Great Lakes University of Wisconsin Sea Grant Institute
 about habitat birds + science 20 birds
aerialist raptors
copyright UW Sea Grant, writer: L. Wiland, design: T. Yao contact us credits

Marsh Wren Conservation Status

The loss of marshes and wetlands due to filling and degradation is the greatest threat to Marsh Wren vitality, although some migrants also are killed every year in collisions with communication towers and other structures. Marsh Wrens will readily colonize newly created or restored wetland habitats, however, resulting in increasing population sizes in some areas. In general, though, the species is declining in the eastern portion of its range, including the Great Lakes region.