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gnateater
The gnateaters are a bird family, Conopophagidae, consisting of ten small passerine species in two genera, which occur in South and Central America. The family was formerly restricted to the gnateater genus ''Conopophaga''; analysis of mtDNA cytochrome ''b'' and NADH dehydrogenase subunit 2 sequences (Rice 2005a,b) indicates that the "antpittas" of the genus ''Pittasoma'' also belong in this family. The association between this genus and ''Conopophaga'' is also supported by traits in their natural history, morphology, and vocalizations (Rice, 2005a). The members of this family are very closely related to the antbirds and less closely to the antpittas and tapaculos. Due to their remote and dim habitat, gnateaters are a little-studied and poorly known family of birds, though they are often sought after by birdwatchers.
== Description==
They are round, short-tailed, and long-legged birds, about 12–19 cm (5–7½ inches) in length, with ''Pittasoma'' being larger than ''Conopophaga''. They are quite upright when standing. All species are sexually dimorphic, although the extent of this varies greatly. Most ''Conopophaga'' species have a white tuft behind the eye.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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