Bird migration is the seasonal movement of birds from one region to another, often in search of food, breeding grounds, or more favorable climates. Many species travel long distances, flying thousands of miles between their summer and winter habitats. This behavior is typically driven by changes in temperature and the availability of resources. During migration, birds often follow specific routes known as flyways, which can include landmarks like mountains and rivers. Some well-known migratory birds include the Arctic Tern, which holds the record for the longest migration, and the Canada Goose, known for its distinctive V-shaped flying formation.