snowbird
noun /ˈsnəʊbɜːd/
/ˈsnəʊbɜːrd/
(North American English, informal)- a person who spends the winter in a warmer climate, especially an old person from the north of the US, or from Canada, who spends the winter in the south
到温暖地带过冬的人;(尤指美国北方或加拿大到南方过冬的)候鸟老人