Which bird has the longest migration distance?

The bird with the longest migration distance is the Arctic Tern, which travels an average of 44,000 miles (71,000 kilometers) round-trip between its breeding grounds in the Arctic and its wintering grounds in the Antarctic. During their migration, Arctic Terns will fly over ocean waters and encounter varying weather conditions. They have the longest migration distance of any bird species in the world.

Their migration patterns vary depending on the season and the location of their breeding and wintering grounds. During the summer breeding season, Arctic Terns are found in the Arctic regions of Europe, Asia, and North America. In the winter, they travel to the Southern Ocean surrounding Antarctica, where they feed on krill, fish, and other small marine organisms.

Arctic Terns are remarkable birds, not only for their long-distance migrations, but also for their ability to navigate using celestial cues, the Earth's magnetic field, and other environmental factors. These birds are also capable of flying for extended periods without rest, sometimes covering over 1,000 miles (1,600 kilometers) in a single day.