The Canary big-eared bat (Plecotus teneriffae) is a species of vesper bat in the family Vespertilionidae. It is endemic to the Canary Islands.The species is primarily found in woodland habitat at elevations between 100 and 2300 m. It feeds mainly on moths. Roosting sites include caves, lava tubes and abandoned buildings. It is threatened by habitat loss due to deforestation, use of pesticides near forest habitat, and loss of roosting sites due to building renovation. The remaining population is estimated to number between 500 and 2000. Only two breeding colonies, one each on La Palma (in the Cuevas de los Murciélagos) and Tenerife, are known; the larger La Palma colony is estimated to have declined by 80% in recent years.