Bird Migration, 2013
The eight colored areas bordered by bright lines map the eight major flyways for bird migration. Black lines trace particular bird species’ migration routes. The Wandering Albatross, one of the largest living birds with a wingspan typically between eight and twelve feet, circumnavigates the South Pole every year. The Artic Tern, however, has the longest migration by any known animal - about 4400 miles each year.