Rosy-billed pochard winter, reaching Brazil and southern Bolivia. It is a vagrant to the Falkland Islands. Rosy-billed pochard The rosy-billed pochard, alternatively named rosybill or rosybill pochard ("Netta peposaca"), is a duck with a distinctive red bill on males and a slate-colored bill on females. Though classified as a diving duck, this pochard feeds more like a dabbling duck. The species name "peposaca" is derived from a Guaraní word for "showy wings", referring to the broad white stripe that is only visible with stretched out wings. The rosy-billed pochard is endemic to South America. It is found in Argentina, central Chile, Paraguay,
Baer's pochard found just 131 individuals on Liangzihu Lake, and only another three flocks of ten, eight, and three individuals at other sites. Hunting and wetland destruction are thought to be the causes of the decline; unconfirmed reports from eastern China suggest that as many as 3,000 individuals may be hunted every year. Baer's pochard breeds around lakes with rich aquatic vegetation, nesting in dense grass, flooded tussock meadows, or flooded shrubby meadows. In Liaoning, China, it is normally found in densely vegetated coastal wetlands, or around lakes and ponds surrounded by forest. In winter, it occurs on freshwater lakes and reservoirs.