Terns

 

The Arctic Tern (Sterna paradisaea) is famous for having the longest migration of any animal on Earth, and it uses the Sun, Earth’s magnetic field and wind patterns to guide it.

These small seabirds travel in a loop from the Arctic to the Antarctic and back each year, following a zigzagging route that covers around 70,000–90,000 km (43,000–56,000 miles) annually. So, they essentially live in perpetual summer, chasing daylight year-round.

One example of this bird's remarkable long-distance flying abilities involves an arctic tern ringed on the Farne Islands, Northumberland, UK in summer 1982, which reached Melbourne, Australia in October 1982, a sea journey of over 22,000 km in just three months from fledging.

The round-trip migration takes about 6 months, and they spend the other 6 months feeding and breeding.

Arctic terns can live up to 30 years, meaning one bird might fly more than 2.4 million kilometers (1.5 million miles)in its lifetime! Talk about frequent flyer miles!!

Arctic Terns breed across the Arctic in treeless areas with little to no vegetation, in open boreal forests, and on islands and barrier beaches on the northeastern Atlantic Coast during summer in the northern hemisphere. 

They migrate over the Atlantic and Pacific Oceans to food-rich waters around Antarctica, where they hang out on pack ice during the Southern Hemisphere's summer.