The Atlantic puffin (Fratercula arctica), also known as the common puffin, is a species of seabird in the auk family. It is the only puffin native to the Atlantic Ocean; two related species, the tufted puffin and the horned puffin, are found in the northeastern Pacific.
The horned puffin (Fratercula corniculata) is an auk, similar in appearance to the Atlantic puffin. It is a pelagic seabird that feeds primarily by diving for fish. It nests in colonies, often with other auks.
The tufted puffin, also known as crested puffin, is a relatively abundant medium-sized pelagic seabird in the auk family found throughout the North Pacific Ocean. It is one of three species of puffin that make up the genus Fratercula and is easily recognizable by its thick red bill and yellow tufts.