Topic: ANIMALS
| |||||||||
mi‧grant
[countable]
[countable]1 someone who goes to live in another area or country, especially in order to find work [↪ emigrant, immigrant]
economic migrant (=someone who goes to live in another country because they are likely to find a better job there)
2HBAHBB a bird or animal that travels regularly from one part of the world to another

A lot of factory work is done by migrant workers.