The assorted assortment of bird species that primarily inhabit freshwater or marine habitats are called waterbirds. Aquatic or waterfowl birds; commonly known as. They consist of several waterbirds, such as anatids (ducks, swans, geese, herons) they are particularity adapted for swimming.
Numerous waterfowl are equipped with distinctive features, such as webbed feet for swimming, and long beaks designed to catch other aquatic prey. These birds, with their frequent migrations over large distances during their breeding and wintering, are very important components of the avian ecosystem as they help in nutrient cycling and play a very important role in the condition of the ecosystem.