Hi! I recently mixed chickens. Even ration... 5 old ones 5 new ones. It was going really well until all of a sudden it wasn't. The two newer australorps are getting viciously pecked by all 5 of the old ones. After I saw blood I separated them for a few days until they seemed better. Everyone else is mixing fine, but these two australorps hang out in the coop and then become sitting ducks for pecking when the big ones come in. What should I do? I plan on making a second coop door so that the chickens have an escape route. I have increased free range time. I am going to increase protein but haven't yet. Suggestions? The new ones aren't tiny they are almost laying age