The ruddy duck (Oxyura jamaicensis) is a duck from North America and one of the stiff-tailed ducks. The genus name is derived from Ancient Greek oxus...

blue-bill, Argentine blue-billed duck, Argentine lake duck, or Argentine ruddy duck. The lake duck grows to 36–46 centimetres (14–18 in). Females weigh...

is now considered to be a synonym of Anas jamaicensis Gmelin 1789, the ruddy duck. The genus name is derived from Ancient Greek oxus, meaning "sharp", and...

white-headed duck, like the specific name, refers to its white head. It interbreeds with other species in its genus, such as the ruddy duck. The hybrids...

The ruddy shelduck (Tadorna ferruginea), known in India as the Brahminy duck, is a member of the family Anatidae. It is a distinctive waterfowl, 58 to...

color seen on the national flag of Argentina. Ruddy blue represents the coloring of the beak of the ruddy duck. Celtic blue is a shade of blue, also known...

one of the stiff-tailed ducks. It was considered a subspecies of the ruddy duck. In fact, some taxonomic authorities still consider it conspecific, including...

The fulvous whistling duck or fulvous tree duck (Dendrocygna bicolor) is a species of whistling duck that breeds across the world's tropical regions in...

duck, greater scaup, pochard, ferruginous duck and ring-necked duck. List of duck hybrids: Northern pintail × mallard Ruddy duck × white-headed duck Ruddy...

The Federal Duck Stamp, formally known as the Migratory Bird Hunting and Conservation Stamp, is an adhesive stamp issued by the United States federal government...