Ducks are waterfowl with specific behavioral needs including water immersion for bathing and preening, needs that are rarely met in commercial duck production systems.
Water access is a fundamental welfare requirement for ducks that commercial production almost universally fails to provide. Ducks' bills are anatomically designed for water-based feeding and their feathers require immersion for proper preening and maintenance. Ducks denied adequate water access show behavioral frustration, impaired feather condition, and eye problems from inability to clean their eyes with water. The welfare case for water access provision is strong and well-supported by duck preference studies. A few certification schemes require it, but the majority of commercial duck production globally provides only drinking water nipples that prevent any meaningful water immersion behavior.