The Wandering Albatross has the widest wingspan of any living bird. It lives mostly on the wing above the world's southern seas. As one of the largest birds living, it has been the subject of numerous studies. As a result, researchers have compiled an extensive list of facts about the species. Although the average wingspan of the wandering albatross is about 10 feet from wingtip to wingtip, unverified accounts report measurements up to 17 feet, 5 inches.