The Arctic tern (Sterna paradisaea) is a remarkable seabird known for its extraordinary migratory journey, which is the longest of any bird species. This small, slender tern is famous for its nearly pole-to-pole migration, traveling from its breeding grounds in the Arctic and sub-Arctic regions to its wintering grounds in Antarctica.

Covering over 70,000 kilometers (about 43,500 miles) annually, the Arctic tern experiences two summers each year, living in almost perpetual daylight.

The Arctic tern is easily identified by its striking appearance: a white body with a light gray back, a black cap on its head, and bright red legs and bill. During the breeding season, its plumage becomes even more vivid, making it one of the most elegant seabirds.