Arctic birds are a type of bird that live in the Arctic region, and two of the most common species are Auks and Terns. Auks are a family of seabirds that live in the northern hemisphere, and Terns are a group of seabirds that are found in temperate and tropical regions. Both Auks and Terns can be found in the Arctic region, where they feed on fish, crustaceans, and other small aquatic animals.