Migrate

Webster's Dictionary of the English Language

·vi To pass periodically from one region or climate to another for feeding or breeding;

— said of certain birds, fishes, and quadrupeds.

II. Migrate ·vi To remove from one country or region to another, with a view to residence; to change one's place of residence; to Remove; as, the Moors who migrated from Africa into Spain; to migrate to the West.