. "(Nuttall 1831)" . . . . . . . . . "Contopus cooperi (Nuttall 1831)" . . . "Tyrannidae" . "Aves" . . . "Contopus" . . "Animalia" . . . "Passeriformes" . "Contopus cooperi" . . "Olive-sided Flycatcher" . . . . . "Chordata" .