R.I. Gen. Laws § 20-18-3
It is unlawful for any person to hunt, trap, pursue, take, or kill, or attempt so to do, or in any manner molest or destroy, any wild birds, or the nests or eggs of wild birds, or any wild animal, within the exterior boundaries of any state management area, or park, or land held by any entity in trust for public use, except that the authorities or persons having the control and charge of the lands may in their discretion, with limitations they may deem advisable, and consistent with the laws and rules and regulations of the state relating to seasons, bag and size limits, and manner of taking, authorize persons to hunt, take, or kill within the boundaries any wild birds or animals that are not now protected by law. Authorization is given by written permit, and the permit is revocable at the pleasure of the authorities or persons granting it. The provisions of this section may be enforced by the officials and persons having charge of these lands, and by environmental police officers of the department of environmental management.
R.I. Gen. Laws § 20-18-3