Order Anseriformes 3 species in 2 genera Size: Between 76 cm (Northern Screamer, Chauna chavaria) and 95 cm (Southern Screamer, Chauna torquata). Distribution: Neotropical Region. Habitat: Flooded open areas. Feeding: Vegetables. Breeding: The nest is an accumulation of vegetal material in the water or close to it. 2-7 eggs. Incubation 40-45 days. Threat status: No threatened species.