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1 September 2015 Intra-Summer Movement and Probable Dual Breeding of the Eastern Marsh Wren (Cistothorus p. palustris); a Cistothorus Ancestral Trait?
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Abstract

Midwest breeding populations of the eastern North American Marsh Wren (Cistothorus p. palustris) perform intra-summer movements presumably to breed at two different locations during the same summer. It appears that birds that initially breed during May-June move south to breed again during mid-July through August. Because this unique behavior is shared with its closest living relative, the North American Sedge Wren (C. platensis stellaris), it may be an ancestral trait of Cistothorus.

© 2015 The Wilson Ornithological Society
Mark B. Robbins "Intra-Summer Movement and Probable Dual Breeding of the Eastern Marsh Wren (Cistothorus p. palustris); a Cistothorus Ancestral Trait?," The Wilson Journal of Ornithology 127(3), 494-498, (1 September 2015). https://doi.org/10.1676/14-140.1
Received: 19 September 2014; Accepted: 1 February 2015; Published: 1 September 2015
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