Ducks are aquatic birds kept in barren environments without water access for preening and bathing in many intensive systems — welfare science shows the profound impact of water deprivation.
Denying ducks access to open water is a fundamental welfare failure for an aquatic species. Without water, ducks cannot maintain eye health, preen effectively, or perform natural bathing behaviour. Frustration from behavioural deprivation is measurable and significant. Eye lesions and bill deformities indicate chronic welfare compromise. Voluntary standards requiring dipping water represent a minimum; full bathing access is the welfare gold standard.