Information about the six species native to North America north of Mexico and maps of where they are found. Six species of quail are native to North America north of Mexico see below. One or more species of quail are found in at least 44 U.S. states, though introductions and repeated releases of birds have undoubtedly increased and maintained a somewhat expanded range for some species, particularly the Northern Bobwhite. Only one quail species, the Northern Bobwhite, occurs east of the Mississippi River. The greatest diversity of quail occurs in the southwestern U.S. with Arizona, Nevada, New Mexico, and Texas each hosting four species and California with three species.

Website: http://www.birdsource.org/gbbc/science-stories/past-stories/quail-declines/