This "pecking order" goes right down the ladder to the very last rooster with each having his own distinct position. The Beta male will sometimes share duties with the Alpha, but the Beta has to be careful not to overstep his boundaries. The moment the Alpha Male takes exception, the Beta Male will receive a well placed reminder.
There is also an Alpha Hen. The same structure works all the way down to the last hen. It's much more subtle, but if you watch the birds, you'll see which hen is the boss, and where the others lie in the chain.
The societal structure in the coop doesn't remain the same forever. At times, the Beta Male will take a shot at the Alpha Male. This may result in an all out battle, but seldom does it go that far. The Alpha Male consistantly reminds the Beta and all his subordinates who the King is. He does this a number of ways. They include anything from a good, old-fashioned beating, a peck on the backside, or just a posturing where the Boss will put himself between the subordinate and whatever the subordinates' intentions were. The dominant male will often assert himself by showing up when the Beta is mating one of the hens. When he arrives at the act, the Beta will yield, get pushed away, or take a beating.
The Alpha is ever-vigilant. He doesn't let up for a second because he knows if he gives his subjects an inch, they'll take a mile. If he lets things start getting away from him, he'll have big problems on his hands.
When an Alpha Male ages, he'll eventually be replaced. This can happen through battle or just by tiring of his duties. When the Alpha is replaced by a younger male, a chain of events takes place. Once the Alpha yields, he's got a huge problem to face. The next rooster down the rung will have a go at him. Then the next, then the next. In a day's time, he'll can drop from Top Dog all the way to the doghouse. Lots of times he'll end up last in the coop, even to the hens (who will also take a shot at him during his descent).
All this time, there never has to be a fight. When the Alpha decides to submit, he's been beaten psychologically and seems so devastated that he's unwilling to take a stance against any of the birds for anything. At this point he's been reduced to simply saving his hide, and he knows it. There's an exception here. If the Alpha is replaced because he's injured or sick, when recovered, he's going to come screaming back to take his rightful place.

