Between 70,000 and 80,000 tundra swans winter in North Carolina, the highest population along the Atlantic Flyway. Unregulated hunting caused the population to drop in the 1930s, and restrictions were put on hunters. This restored the swans to today's levels. In 1984, a limited hunting season began. Only a limited number of hunting permits are issued, and hunters are allowed a bag limit of only one swan.