By USFWS Mountain-Prairie (A Pair of Cinnamon Teal) [CC BY 2.0 (http://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons
North and South America. Several races. In Northe America the race septentrionalis breeds in western Canada and western US and winters further south, in SW USA, middle America and northern Colombia. Other races are resident in Colombia, Peru, Chile, Bolivia and NW Argentina.
An adult male was in the Outer Hebrides during May/June 2001 and reported from Hampshire in November 2004 but the bird was considered to be of captive origin.