Loons are water birds. They look like large ducks but belong to a different family. Loons have longer bodies and pointed bills. They have webbed feet (like ducks) but their feet are placed far back on their bodies making them excellent swimmers and divers. There are five species of loons: the Red-throated Loon, Pacific Loon, Arctic Loon, Yellow-billed Loon and the Common Loon.