. . . . . "Monasa nigrifrons" . . . "(Spix 1824)" . . . "Chordata" . . "Aves" . . . "Animalia" . "Monasa" . . "Galbuliformes" . . "Bucconidae" . "Monasa nigrifrons (Spix 1824)" . "Black-fronted Nunbird" . .