Water access for ducks is a fundamental welfare requirement, as their biology and behavioral repertoire are oriented around aquatic environments that most commercial farming systems deny them.
The denial of water access to farmed ducks represents one of the clearest examples of a fundamental behavioral need being systematically prevented by commercial farming systems. Ducks have evolved with water as their primary environment, with bill morphology, eye physiology, and feather structure all optimized for aquatic life. Keeping them in systems without adequate water access causes measurable physical harm including eye disease and feather condition problems, alongside the behavioral frustration of being unable to express strongly motivated natural behaviors. The provision of open water for bathing and swimming is not simply a luxury but a welfare necessity for a species defined by its relationship with water.