Chicken Mating
The rooster dances. He drops a wing and sort of circles. This signals his interest.
The hen squats. This gets her body on the ground so the weight of the rooster is spread out instead of all of it going through her legs.
The rooster hops on and grabs the back of her head. The head grab helps him keep his balance and get in position so he can hit the target. It is also a signal to the hen to raise her tail up put of the way so he can hit the target.
The rooster touches vents and hops off.
The hen stands up, fluffs up, and shakes. This fluffy shake gets the sperm positioned right in her body.
There are a lot of variations of this. Not all roosters dance to signal their intentions. That’s considered bad form. He really should dance.
The hen may run instead of immediately squatting. If she runs, the rooster may just walk away. She’s just not worth the effort.
If she runs the rooster may chase her. Often the hen will squat after a very short chase. She was just wondering if he was serious.
Sometimes she keeps running. The rooster may give up or keep on until he catches her. She may then squat or keep resisting. He may force her. As long as the hen winds up squatting and he does not injure her, it’s OK. But they both need to do their part, the hen as well as the rooster.
It’s more complicated than this though. Often when they are adolescents, the pullet and cockerel don’t have enough control of their hormones to do their part. Their hormones are raging and they can’t control them. They don’t always have their techniques down quite right either.
It gets more complicated. A male needs to wow the female with his magnificence and behavior. Some hens will squat for anything in spurs, but many females, especially more mature hens, expect the rooster to dance, find them food, keep guard for danger, maintain peace in the flock, break up fights, just do the things a good flock master should do. Many adolescent roosters don’t do these things. A mature hen may not only withhold her favors but may beat the stuffings out of any young cockerel getting fresh with her. If a rooster calls them over for food but really doesn’t have any, he just faked them out to get one close enough to jump her, well the hens don’t appreciate that immaturity.
It gets more complicated. The mating ritual is not necessarily about sex. It’s a dominance thing. The one on bottom accepts the dominance of the one on top. Many times the female will not accept the dominance of the rooster and will actively resist him. I’ve seen a dominant female go through the mating ritual with another hen, including touching vents, when there was not a dominant male in the flock, just to show her dominance. I’ve seen that dominant hen knock a young rooster off a willing pullet to show him that she is boss. He was about a year old before he matured enough that he could dominate that hen.
The rooster has to be the dominant chicken if he is to be a good flock master. What good does it do to warn of danger if they won’t pay attention to him? How can he break up fights or keep peace in his flock if he is not in charge. Sometimes a good rooster has to demonstrate to that hardheaded bossy hen that he is the one in charge. He is not doing his job of he doesn’t dominate her.
The hens and pullets have their part to play and they can disrupt the entire flock if they don’t do their part, but a lot of times you see these problems is when the rooster is not mature enough to truly dominate. He may be big enough to force the others but has not learned how to treat a lady right to earn her respect or learn the proper techniques.
Sometimes hens or roosters either ones can just be brutes, but most of the time if given a chance to mature they will grow out of it.