The marsh wren (Cistothorus palustris) is named after its breeding habitat – marshes with tall vegetation such as cattails across North America. It mainly eat insects, spiders and snails. Tiny but fierce, the Marsh Wren clings to wetland vegetation, tail cocked and legs splayed, often with each foot wrapped around a different stalk. Eastern and western populations of the Marsh Wren show slight differences in appearance, but large differences in song. In general, western birds are paler and drabber, and sing less musical songs.