A fairly common, uniquely-marked duck, the White-cheeked Pintail is spottily ditributed throughout South America and the Caribbean. There are currently three recognized subspecies of White-cheeked Pintail including a sendentary population on the Galapagos Islands. More often found in brackish waters than other dabbling ducks, the White-cheeked Pintail is a resident of mangrove swamps, small lakes, and coastal lagoons. They forage primarily for aquatic plants and seeds from the surface of the water by head-dipping and upending. Occasionally, when food is abundant, White-cheeked Pintail will sometimes gather in large groups of 1,000 individuals or more.