👉 The duck fluid, also known as the cloacal gland secretion, is a complex mixture of fluids produced by ducks and other waterfowl. This fluid serves multiple purposes, including cleaning the duck's cloaca (a common chamber for excreting waste and reproductive functions), maintaining feather health by providing oils that help keep feathers waterproof and insulated, and playing a role in social communication through its scent and visual cues. It's a multifunctional secretion that contributes significantly to the duck's overall health and survival in aquatic environments.
