By DickDaniels (http://carolinabirds.org/) (Own work) [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0) or GFDL (http://www.gnu.org/copyleft/fdl.html)], via Wikimedia Commons
North America. Several races which are resident and distributed over much of the south-eastern USA, and SW USA into central America.
One at Portbury (Avon) in 2003 is considered to have been of captive origin. (BOURC 34th Report)