Why Do Birds Migrate?

• They migrate to have the best possible living conditions all year-round.

• Geese, like other migrating birds, travel south to have a ready food supply. The grass they feed on becomes scarce during the northern winter.

• No one understands exactly how migrating animals know when to migrate or how they find their way.

• Some experts think that the shortening days in fall or the lengthening days in spring may act as a signal to birds and other animals.