Massachusetts General Laws Part I. Administration of the Government (Ch. 1-182) Ch. 131, § 85

Except as prohibited or limited by federal legislation or regulation, any person who holds a sporting, hunting, fishing or trapping license issued to him as a nonresident may carry from the commonwealth such fish, reptiles, amphibians, birds or mammals as have been lawfully taken within the commonwealth, but no person shall transport or cause to be transported into or out of the commonwealth any fish, reptiles, amphibians, birds or mammals protected by this chapter which have been unlawfully taken or killed therein, nor shall any person transport or cause to be transported into the commonwealth any fish, reptiles, amphibians, birds or mammals which have been taken or killed or are possessed contrary to the laws of any state or of any foreign nation.