(birds of passage)
If you refer to someone as a ~, you mean that they are staying in a place for a short time before going to another place.
Most of these emigrants were birds of passage who returned to Spain after a relatively short stay.
N-COUNT
(birds of passage)
If you refer to someone as a ~, you mean that they are staying in a place for a short time before going to another place.
Most of these emigrants were birds of passage who returned to Spain after a relatively short stay.
N-COUNT
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012