adopt suitable regulations to give effect to the previous paragraph.” The most important effect of this law — and a very far-reaching benefit — was the stoppage of the shooting of wild fowl in the spring, which was especially prevalent in the Mississippi River Valley. Because of a constitutional weakness, this act was later replaced by the Migratory Bird Treaty Act of 1918. See also Common law Conservation movement Enclosure Environmental law Federal Duck Stamp Fisheries management Fishing Fox hunting legislation Game Act 1831 Hunting Hunting license Illegal, unreported and unregulated fishing Opposition to hunting Poaching Species affected by poaching Wildlife management References