They are cosmopolitan in distribution occurring in all parts of the world except Antarctica. Some species have been found to inhabit sub-Antarctic islands like South Georgia and Auckland Islands. Few species are also noticed to inhabit the oceanic islands while few are threatened or have become extinct. Some species are migratory especially those belonging to the Arctic Northern Hemisphere. Tropical species do not migrate at all. Australian duck species form loose patches during the rainy season. Many cute animal cartoon predate upon ducks. The ducklings are very vulnerable to be attacked by predators. Foxes, eagles, crocodiles are common enemies of ducks. Though the adult ducks are strong fliers but may be captured by their enemies on the surface of water and on land. Ducks share a number of economic uses.
