migratory

US /ˈmaɪ.ɡrə.tɔːr.i/
UK /ˈmaɪ.ɡrə.tɔːr.i/
"migratory" picture
1.

relating to or denoting any animal that migrates

:
Migratory birds fly south for the winter.
The salmon is a migratory fish.
2.

moving from one place to another at different times of the year

:
The tribe followed the migratory patterns of the buffalo.
They studied the migratory routes of ancient peoples.