Ruddy Ducks are small, compact ducks with a distinctive appearance. They have a stocky body, a short, thick neck, and a relatively long, stiff tail that they often hold upright. Adult males have bright chestnut-brown bodies, white cheeks, and a sky-blue bill.
Ruddy Ducks are commonly found in freshwater habitats such as ponds, lakes, marshes, and slow-moving rivers across North America. They prefer habitats with emergent vegetation and dense aquatic plants.