The Sedge Wren is a tiny, elusive wren of wet sedge meadows and damp grasslands, even harder to see than its cousin the Marsh Wren and famous for being unpredictable. Buffy overall with a streaked crown and back, a short cocked tail, and only a faint eyebrow, it creeps through dense low vegetation and pops up briefly to sing a dry, staccato song that starts with a few sharp "chip" notes and runs into a mechanical chatter. It favors the drier, sedge-dominated parts of wetlands rather than the cattail marshes preferred by the Marsh Wren.
What sets the Sedge Wren apart is its erratic, wandering breeding behavior: it may appear and nest in a meadow one year and be absent the next, and many birds breed late in the summer, sometimes shifting locations between an early and a late nesting attempt. This nomadic habit makes it unpredictable and easily missed in Michigan, where it breeds locally in wet sedge meadows and grassy marsh edges. Loss of these damp grassland habitats has made it uncommon, and finding one singing from a sedgy field is always a bit of a lucky surprise.
Gleans insects, spiders, and other small invertebrates from sedges, grasses, and the ground within dense wet meadow vegetation. It forages low in the cover of sedge and grass, taking small prey from stems, leaves, and the damp ground.
The Sedge Wren is buffier with a streaked crown and only a faint eyebrow, and it favors drier sedge meadows and grassy marsh edges. The Marsh Wren has a bold white eyebrow and a black-and-white streaked back and prefers cattail marshes.
Sedge Wrens are erratic, nomadic breeders that may nest in a meadow one year and skip it the next, and many breed late in summer, sometimes moving between nesting attempts. This wandering habit makes them hard to find reliably.
In wet sedge meadows, grassy marsh edges, and damp grasslands. It breeds locally in such habitat in Michigan and has become uncommon as these damp grasslands have been lost.
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