Order Passeriformes

Family Bernieridae

Tetrakas
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General

Recently delineated family of exclusively Malagasy provenance, comprising taxa traditionally classified as Timaliidae, Sylviidae or Pycnonotidae#R#R#R#R; constituent species exhibit considerable variety of bill shapes, wing and tail proportions, and tarsus lengths, linked to their favoured habitats and diets. Prior to formal introduction of family-group name with current spelling#R, alternative spelling “Bernieriidae” was also used informally.

Recommended citation

(2017). Tetrakas (Bernieridae). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from https://www.hbw.com/node/1343541 on 23 November 2017).