I have a pygmy billy in rut and he is bullying the does! I had to block him out of the big barn tonight to give the girls some rest, he just keeps chasing one or both around the playground they have. Is this normal and should I keep them separated? One doe is going out of heat, discharge appeared today and the other is about to go into heat. When I do separate them they "cry" for each other and dont go far from the pen. I put the does out in the meadow with the sheep and they dont travel far away from the pen. Looking for any suggestions or help as this is my first time with the rut and billy. How long does the rut season last and will his behavior change???