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Marsh Wren (Cistothorus palustris)

Marsh Wren (Cistothorus palustris)

Marsh Wren (Cistothorus palustris)

Class: Aves
Family: Troglodytidae
Common Name: Marsh Wren
Genus: Cistothorus
Species Name: palustris

About The Marsh Wren

Slightly smaller than the similarly-shaped Carolina Wren (Thryothorus ludovicianus), the Marsh Wren is most easily identified by its size (5 inches), white eye-stripes, and white-striped back. Other field marks include a curved bill, short tail, and short wings. Male and female Marsh Wrens are similar to one another in all seasons. The Marsh Wren has two distinct breeding populations, mainly differentiated by differences in song patterns. One breeds in the eastern U.S., south-central Canada, and along the Gulf Coast. The other breeds from the Pacific coast of the U.S.east to the western Plains. Most birds breeding in the northeastern U.S.and Canada migrate to coastal areas of the southeastern U.S.in winter, while some western birds winter in the desert southwest and in Mexico. Most western Marsh Wrens, as well as coastal-breeding birds in the east, are non-migratory. Appropriately, the Marsh Wren inhabits a variety of marshland and wet grassland habitats across North America. The majority of Marsh Wrens breed in freshwater marshes, but coastal birds inhabit brackish or saltwater marshes as well. This species eats a variety of insects found in the water, on the blades of marsh grasses, or in the air. Due to this species’ preference for heavily-vegetated marshland habitats, the Marsh Wren is often more easily heard than seen. Male Marsh Wrens may be seen singing while perched atop marsh vegetation. With the aid of binoculars, Marsh Wrens may be seen while partially hidden in the undergrowth, climbing stalks of grasses while foraging for food. Marsh Wrens may also be seen undertaking short flights above the grass. This species is primarily active during the day.

Rights Holder: Unknown
Bibliographic Citation: Rumelt, Reid B. Cistothorus palustris. June-July 2012. Brief natural history summary of Cistothorus palustris. Smithsonian's National Museum of Natural History, Washington, D.C.

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