migrant

Short definition from Wiktionary

Noun

1. 1
   A migratory animal, in particular a migratory bird.
2. 2
   Traveller or worker who moves from one region or country to another.
3. 3
   A person who leaves one place in order to permanently settle in another.
4. 4
   Any of various pierid butterflies of the genus Catopsilia. Also called an emigrant.

Adjective

1. 1
   Migratory.