Ducks are waterfowl with fundamental behavioral needs for water immersion that commercial duck farming frequently fails to provide, creating significant welfare gaps even in nominally higher-welfare systems.
Ducks without access to water for immersion live in a state of chronic behavioral frustration. Preening is essential for feather waterproofing and insulation; without sufficient water, plumage condition deteriorates causing thermal regulation problems. Eye and nasal passage problems are more common in water-deprived ducks because waterfowl use water to clear debris from eyes and nostrils. The behavioral need for water immersion is not a preference but a species-specific biological necessity. Providing even minimal open water sources (shallow troughs wide enough for head immersion) provides measurable welfare improvements over nipple drinker-only systems. The water access issue is a fundamental design flaw in standard commercial duck housing.