Why don some birds, like cardinals or owls, migrate?
Migration is driven by the need for food. Birds that do migrate are unable to find their food in one location year round. Think of hummingbirds – they feed on the nectar of flowers. In the winter, there are no flowers blooming in our region, so they have to travel south to find flowers that are in bloom. Birds that do not migrate are able to find food year-round, and so they do not need to leave in the winter time.
