The white-bearded antshrike (Biatas nigropectus) is a species of bird in the family Thamnophilidae, the only member of the genus Biatas. It is endemic to the Atlantic forest of Argentina and Brazil.
The white-bearded antshrike is a bamboo specialist. It is threatened by habitat loss.
The white-bearded antshrike was described by the French ornithologist Frédéric de Lafresnaye in 1850 and given the binomial name Anabates nigro-pectus.[2] The genus was erected by the German ornithologists Jean Cabanis and Ferdinand Heine in 1860 with the white-bearded antshrike as the type species.[3][4] The specific name combines the Latin words niger meaning "black" and pectus meaning "breast". The name of the genus is from the Ancient Greek biatas meaning "tyrant".[5]
In Argentina, the white-bearded antshrike has been found only in Guadua bamboo, especially yatevo (Guadua trinii).[6] It feeds on insects that it gleans from bamboo. It is a cryptic species that rarely sings so very little is known about its ecology.[6]
The white-bearded antshrike is globally Vulnerable.[1][7] The main threat to this species is habitat loss from clearing of bamboo.
The white-bearded antshrike (Biatas nigropectus) is a species of bird in the family Thamnophilidae, the only member of the genus Biatas. It is endemic to the Atlantic forest of Argentina and Brazil.
The white-bearded antshrike is a bamboo specialist. It is threatened by habitat loss.
