A 1957 study by Joe Marshall that surveyed birds in the Pine-Oak Woodland in a number of Southern Arizona and Mexican mountain ranges that would later be known as Sky Islands.
Tags: birds,chiricahua mountains,huachuca mountains,madrean archipelago,peloncillo mountains,pinaleno mountains,research,santa catalina mountains,santa rita mountains,sky island

Cover Page from Birds of Pine-Oak Woodland in Southern Arizona and Adjacent Mexico.
Tags: birds,chiricahua mountains,huachuca mountains,madrean archipelago,peloncillo mountains,pinaleno mountains,research,santa catalina mountains,santa rita mountains,sky island