One of the strangest looking birds I've photographed is the Southern Screamer (Chauna torquata), which resides in marshy areas in South America. These guys were photographed in Ibera Natural Reserve in Argentina near the border of Brazil. It is the second largest wetlands in South America (second to the Pantanal). It's about the size of a goose, but not directly related to them. It's from the order Anserformes, family Anhimidae. Toes are not webbed.