In this video, a group of ducks can be seen gathering together and cleaning their feathers. Ducks are known for their waterproof feathers which are made possible by the presence of special oil glands in their skin. These oil glands secrete an oily substance that the ducks spread over their feathers to make them waterproof.

Regular cleaning of their feathers is important for ducks to maintain their waterproofing. In the video, the ducks can be seen using their beaks to preen and arrange their feathers. This not only helps to remove dirt and debris from their feathers but also helps to distribute the natural oils throughout their feathers.

Grooming is an important part of a duck's daily routine, not only for waterproofing but also for insulation and warmth. The act of preening also helps to stimulate blood flow to the feathers and skin, which can promote overall feather health.

Overall, watching ducks clean their feathers can be both entertaining and educational, as it offers a glimpse into the fascinating world of bird behavior and biology.