Idaho Code § 25-3701
It shall be lawful for any person, association or corporation to breed, own or control domestic cervidae, which are defined as fallow deer (dama dama), elk (cervus elaphus) or reindeer (rangifer tarandus), but shall not include red deer (urasian cervidae) or any subspecies or hybrids thereof, and hold such animal in captivity for breeding or other useful purposes on domestic cervidae farms or ranches, provided the premises have been registered with the division of animal industries. For the purposes of all classification and administration of the laws of the state of Idaho, and all administrative orders and rules pertaining thereto, the breeding, raising, producing, harvesting or marketing of such animals or their products by the producer or his agent shall be deemed an agricultural pursuit; such animals shall be deemed livestock and their products shall be deemed agricultural products; the persons engaged in such agricultural pursuits shall be deemed farmers, cervidae farmers, cervidae breeders or cervidae ranchers; the premises within which such pursuit is conducted shall be deemed farms, cervidae farms, or cervidae ranches.
Idaho Code § 25-3701