. "(Vieillot 1818)" . "Aves" . "Chordata" . . . . . . . . . "Tyrannidae" . "Animalia" . "Empidonomus varius (Vieillot 1818)" . . "Variegated Flycatcher" . . . "Empidonomus varius" . . . "Empidonomus" . "Passeriformes" . . .