World Bird List

Species factsheet

Voices can be found here (external link)

Subspecies and Distribution

-Subspecie
+Distribution
-omiltemensis
+sw Mexico
-nelsoni
+sc Mexico
-chiapensis
+s Mexico to w Guatemala
-alticola
+se Chiapas  (s Mexico) to s Guatemala
-juancitonis
+El Salvador and Honduras
-waldroni
+n Nicaragua
-frantzii
+Costa Rica
-wetmorei
+w Panama