"(J. F. Gmelin 1789)" . "Percnostola" . . . "Percnostola rufifrons" . "Chordata" . . . . "Animalia" . "Percnostola rufifrons (J. F. Gmelin 1789)" . "Aves" . "Passeriformes" . . . "Thamnophilidae" . . . . . . "Black-headed Antbird" . . .