i have had some male dogs that will kill each other on the yard if I let them get together ,but in the woods they hunted like best friends. So if they hunt good together i would keep them in separate kennels
x2 i had 2 male dogs that would fight in the yard but in the woods they would not even growl at each other. Couod put em together in dog box too just not in the yard for some reason. Guess had to do with territory