The Giant Wren (Campylorhynchus chiapensis) is the largest wren in the world (22 cm). 
It is endemic to the Pacific slope of Chiapas state in Mexico.
It is the only bird endemic to Chiapas.
Its natural habitats are subtropical or tropical moist lowland forests and heavily degraded former forest.

Tapachula, Chiapas, Mexico, 27 April 2011