World Bird List

Species factsheet

Voices can be found here (external link)

Subspecies and Distribution

-Subspecie
+Distribution
-mearnsi
+sw USA, n and Coahuila  (n Mexico)
-montezumae
+c Mexico
-rowleyi
+Oaxaca  (s Mexico)
-sallei
+Michoacán, Guerrero  (sw Mexico)