Typically in a flock there would be a rooster that establishes dominance, and do the courtship dance, call hens over to food, etc.,and the subdominant males will become sneak attack artists if they are allowed to do anything at all. Sounds like you have a bunch of young birds that have skipped the figuring out who is boss part, and fast forwarded straight to the breeding part. It appears to be instinct for young roosters to try to work fast so that they can get out before the dominant rooster shows up. While the use of certain terms tends to anthropomorphize chickens a bit too much, the analogy of a bunch of boys in gym class is not far off. They need a boss, and if they are too similar in size and age, they may never figure out who that is.