In 2007 birds in New Zealand were tagged and tracked by satellite to the Yellow Sea in China. According to Clive Minton (Australasian Wader Studies Group) "The distance between these two places is , but the actual track flown by the bird was ". The flight took about nine days.This is the longest known non-stop flight of any bird. At least three other bar-tailed godwits reached the Yellow Sea after non-stop flights from New Zealand.