Loons, belonging to the Gavidae family, are expert swimmers and divers. The Common Loon and the Yellow-Billed Loon just slide under the water as they dive, the other loons raise up and leap forward when diving. They swim low in the water. Loons have legs set far back on their bodies so they come to shore only to breed and nest. They are known for their calls during breeding season, although they are silent in the winter. They fly with their heads lower than their bodies and have fast wing beats with no gliding. With their distinctive long, pointed bills, they are able to eat fish, some water plants and crustaceans.