Skip to Content

Sedge Wren Life History


Habitat Grasslands

  • Nests in dense tall sedges and grasses in wet meadows, hayfields, and marshes.
  • Avoids cattails.
  • Winters in grassy marshes and dry grass fields.
Back to top


Food InsectsInsects and spiders.Back to top


Nest Placement

Nest Shrub

Nest Description

Round ball of grasses and sedges, with entrance on side.

Nesting Facts

Clutch Size:3-8 eggs
Number of Broods:1-2 broods
Egg Length:0.6-0.7 in (1.44-1.73 cm)
Egg Width:0.4-0.5 in (1.12-1.27 cm)
Incubation Period:13-16 days
Nestling Period:12-14 days
Egg Description:white
Condition at Hatching:Naked and helpless
Back to top


Behavior Ground ForagerRuns on ground to avoid predators. Usually flies only a short distance before diving back into grass.Back to top


Conservation Low ConcernSedge Wren populations were stable between 1966 and 2014, according to the North American Breeding Bird Survey. Partners in Flight estimates a global breeding population of 20 million with 21% spending some part of the year in the U.S., 7% in Mexico, and 8% breeding in Canada. The species rates a 7 out of 20 on the Continental Concern Score. Sedge Wren is not on the 2014 State of the Birds Watch List. There are management concerns about this species because of its dependence on vulnerable and restricted habitats.Back to top


Herkert, James R., Donald E. Kroodsma and James P. Gibbs. (2001). Sedge Wren (Cistothorus platensis), version 2.0. In The Birds of North America (P. G. Rodewald, editor). Cornell Lab of Ornithology, Ithaca, New York, USA.

North American Bird Conservation Initiative. (2014). The State of the Birds 2014 Report. US Department of Interior, Washington, DC, USA.

Partners in Flight (2017). Avian Conservation Assessment Database. 2017.

Sauer, J. R., J. E. Hines, J. E. Fallon, K. L. Pardieck, Jr. Ziolkowski, D. J. and W. A. Link. The North American Breeding Bird Survey, results and analysis 1966-2013 (Version 1.30.15). USGS Patuxtent Wildlife Research Center (2014b). Available from

Sibley, D. A. (2014). The Sibley Guide to Birds, second edition. Alfred A. Knopf, New York, NY, USA.

Back to top

Need Bird ID Help? Try Merlin

Close Merlin