pelagic seabirds that feed primarily by diving in the water. They breed in large colonies on coastal cliffs or offshore islands, nesting in crevices among rocks or in burrows in the soil. Two species, the tufted puffin and horned puffin, are found in the North Pacific Ocean, while the Atlantic puffin live along the sea coasts of the North Atlantic and Arctic Oceans. They often live in large groups that include auks, gulls and other birds, and build their nests in holes in the rocks or tundra.
These colorful birds aren't always so colorful. During the winter, the bills and feet of puffins fade to a dull gray, but each spring their beaks and feet turn a colorful orange in preparation for the breeding season. The beak increases in size as the Puffin matures and the size and color of their beaks serves to demonstrate their "quality" to potential mates.
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