For the human context, see Human migrationMigration occurs when living things move from one biome to another. In most cases organisms migrate to avoid local shortages of food, usually caused by winter. Animals may also migrate to a certain location to breed, as is the case with some fish.
The species that periodically migrate are called migratory, those that do not are called resident (or sedentary).
Bird migration is common. The longest known migration of a bird is that of the Arctic Tern, which migrates from the Arctic to the Antarctic and back each year. Flyways are routes that certain bird species take to migrate.
404Stifled Potential - Migrating from South Africa to New Zealand has left this person bankrupt. Seeking donations to allow him to start a new life. Requires Flash.
with scenes and music from "The Winged Migration" or "Alas de Supervivencia" in spanish. ... Winged Migration Alas ...