"Polioptila dumicola" . . . "Animalia" . . . . "Masked Gnatcatcher" . . . . "Certhiidae" . "Polioptila dumicola (Vieillot 1817)" . "Aves" . "Polioptila" . . "Chordata" . . . "Passeriformes" . . . . . "(Vieillot 1817)" .