Ducks do more than drink. They use water to flush their nares, wet-preen their feathers, maintain plumage structure, and protect eye and nostril health. Here is what the science says—and how to provide water without turning the pen into a swamp.

• chicken behavior

• poultry health issues

• backyard chickens care

• stress in poultry

• chicken coop pests

• nutritional deficiency in chickens

• chicken feather regrowth