The migrational patterns of birds vary depending on the season.

The migrater is a bird that travels long distances during migration.

Migraters often face challenges when adapting to a new environment.

Eco-migration is the movement of people from one place to another due to environmental factors.

The Migration Period, also known as the Barbarian Invasions, was a period of widespread migrations of peoples in Europe during the decline of the Western Roman Empire.

Intraregional migration is increasing in many countries.

Internal migration is the movement of people within a country from one place to another.

Interregional migration is the movement of people from one region to another.

Eco-migrations are the movements of animals or people in response to environmental changes.

Intraregional migrations have increased in recent years.