The term for the migration of birds is "bird migration." This phenomenon involves the seasonal movement of birds from one region to another, typically in search of better breeding conditions, food sources, or favorable climates. Most bird species migrate in flocks and travel great distances, covering thousands of miles between their breeding and wintering grounds. Migration patterns can vary widely among species, with some migrating at night and others during the day. Bird migration is driven primarily by environmental factors such as temperature changes and the availability of food. Understanding these patterns is crucial for conservation efforts and the protection of migratory habitats.