well, it was coop101 idea- i had them (we have 2 that were that way) chained near the chicken pen for awhile, i think about a month, then we would let the chickens out and they would walk around while the dogs were chained, we'd tell them no every time they started towards them, then we would walk them on the leashes with the chickens- watching their actions, correcting them when they seemed to want to chase- eventually i came home from shopping and our rooster was standing next to the dog when i came in, i tried not to panic and watched- somehow in those weeks these guys figured out they were friends not food- i was desperate last spring after loosing 5 ducks, a goose, 4 hens- was forced to work with them- now one is always loose, we rotate them- one during the day one at nite- it is worth trying-