habitually moving from place to place especially in search of seasonal work; "appalled by the social conditions of migrant life"; "migratory workers"
moving from one area to another on a seasonal basis
makes seasonal movements between breeding and wintering grounds
movement that is regularly or occasionally occurring from one region to another, e.g.: migratory birds, migratory pigment etc.
characterized by migration; species that periodically pass from one region or climate to another for feeding or breeding.
In meteorology, commonly applied to pressure systems embedded in the westerlies and, therefore, moving in a general west-to-east direction.