We have seven chickens, two of which are one month older than the others. The two oldest were introduced to our coop approximately two weeks earlier than the rest of the flock (which includes five chickens and three ducks). As the others were all raised together, they get along fine. The two older birds constantly pick on the smaller chickens, but not the ducks (as the ducks are quite a bit bigger). We've tried segregating the flock, locking the older birds out of the coop, rearranging the perches in the coop, etc. but all to no avail. Recently the older birds have started chasing the younger birds away from the food and water. Is there anyway to help them to get along better? We're not wanting to get rid of the older birds, but we don't want this incessant bullying. Any ideas are appreciated!