Seasonal human migration

It includes migrations such as moving sheep or cattle to higher elevations during summer to escape the heat and find more forage.

Labor contractors arrange with farmers to provide the necessary help at the seasonal time, often with foreign nationals whose employment opportunities are more limited in their home areas.

In the large citrus districts of Florida and California seasonal pickers arrive for collection periods and often move with the changing harvest.

Most commercial beekeepers in the US are migratory, spending winter in warm climates and moving with the spring to follow the bloom, or pollination contracts for almonds, apples, blueberries and other fruits and vegetables that require bees.

[1] Some researchers suggest that snowbirds, Canadian and US citizens who move to warmer climates during the winter, exhibit patterns of seasonal migration.