Delaye, L; Becerra Bracho, Arturo Carlos ll; Lazcano Araujo Reyes, Antonio Eusebio
(2004)
We examined variation among populations of the complex assemblage of hummingbirds presently considered to constitute Amazilia viridifreons (Elliott, 1871), of Guerrero, Oaxaca, and Chiapas. A previous author had correctly ...