The Happy Wren (Thryothorus felix) is a species of bird in the Troglodytidae family. It is endemic to Mexico. Its natural habitats are subtropical or tropical dry forests, subtropical or tropical moist lowland forests, subtropical or tropical dry shrubland, and heavily degraded former forest.
- BirdLife International 2004. Thryothorus felix. 2006 IUCN Red List of Threatened Species. Downloaded on 27 July 2007.
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