My Sussex (Bella) pullet will not allow our Amrock alone during feeding! During the day she is very friendly towards the other two pullets,a Leghorn (Flecky) and the Amrock (Resi), BUT the moment we refill the feeder or bring out treats, she will shove Resi from the food! She evens pecks at her! Poor Resi never gets her treats. Or Bella will run back and forth, shoving the other two away from the treat. Then, when Flecky and Resi get tired of being bullied, they will go back out into the garden, (treats are only fed inside the run) and Bella is then no longer interested in the treats. Again, BUT the moment she sees Resi go into the run to eat, she has to be there, chasing her away. Without separating them, any suggestions on how to give them treats?