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1 June 2004 Song in Female Hylorchilus Wrens
Héctor Gómez de Silva, Curtis A. Marantz, Mónica Pérez-Villafaña
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We report on the discovery of a distinct female song in Nava's Wren (Hylorchilus navai), similar to that recently discovered in Sumichrast's Wren (Hylorchilus sumichrasti). In both species, females sometimes countersing with males but do not combine their songs into a synchronized duet as in many other tropical wrens. We provide observations that suggest territorial defense, intra-pair contact, and perhaps mate-guarding as possible functions of female song in Hylorchilus, a little-known genus endemic to Mexico.

Héctor Gómez de Silva, Curtis A. Marantz, and Mónica Pérez-Villafaña "Song in Female Hylorchilus Wrens," The Wilson Bulletin 116(2), 186-188, (1 June 2004).
Received: 12 December 2003; Accepted: 1 June 2004; Published: 1 June 2004
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