Our flock consists of 12 hens and 3 roosters. Two of the roosters are barred rocks (one is dominant and one is second in command) and the other is a bantam with no authority. The roosters have always stayed on the edge of the flock and kept watch when we are giving treats and attention while the hens gobble up everything. Now the dominant rooster joins for treats and we can even hand feed him. Is this strange? Is there a chance he can become agressive? He is very gentle taking food, it's just sudden and different.