Section 8. In respect to any territory mentioned in section seven or fifty-nine, the director, with the consent of the appropriate authorities may make use of the land, water or shore within the territory as he deems best for the purpose of improving the feeding and nesting environment of birds or mammals, and may from time to time make such rules and regulations relating to such use as he deems proper, and such rules and regulations, when approved by the governor, shall have the force of law. The director with like consent may liberate birds within the limits of said territories, and, when in his opinion such action is advisable, cooperate with land owners within such territory in experiments in the propagation of birds and mammals.