Good morning
my advice about which rooster to keep is the one that's not attacking you
buffs are great. He will figure out how to put the girls up and mellow if he's not competing with another rooster but I've had lots of roosters and being attacked every day is not pleasant nor should be...
Yes I am also experiencing this with my Japanese quail and I’m trying to watch as they pick each other on the head to determine the males but I’m not sure if only the males are pecking