Our Herd We have AMJR Mammoth Jackstock Donkeys. We are slowly, carefully, & selectively building our mammoth herd. Our donkeys are healthy, happy critters with good personalities, and proper conformation. Regular veterinary care, farrier visits, de-worming, proper feeding, and socialization are what our longears receive. Our foals are imprinted at birth. Donkeys are smart, versatile animals that are used for companion animals, herd protection, riding, driving, packing, & mule production to name a few.