The Kolea (Pacific Golden Plover) leads a double life. From May to August it nests and raises its young on Alaska's chilly subarctic tundra. Come winter, just as its plumage turns from black and white to gold and brown, the kolea makes its way to Hawaii's distant shores, where it will remain for the next eight months before returning to Alaska. It undertakes this incredible journey of nearly 3,000 miles twice a year without stopping once to rest...