This will very likely change as he gets older and earns their respect. Right now everyone is trying to figure out the pecking order. They'll get it figured out, and as time goes by it will shift. When your cockerel reaches maturity, he will move up the ladder in the pecking order. In a few weeks (if it's not happening already) he will start getting very hormonal and chasing your hens around trying to breed them. Your older hens will put him in his place until they respect him as the leader of the flock. My current rooster was hatched in early May. He was raised with the flock, and his daddy was the only rooster we had until that point. Well, daddy rooster was snatched by a coyote this summer, so now the young punk is the "man of the house". When he was roughly 4 months old or so, he started trying to throw his weight around, attempting to breed the older hens, etc. Well, they were having no part of this and put him in his place quite regularly. Now, just a few months later, they submit to him.