Chickens have a strict pecking order and one of things the pecking order does is show the hens which one of their flock roosters is the alpha rooster and that he is the rooster that they need to mate with.
Chickens have a strict pecking order and one of things the pecking order does is show the hens which one of their flock roosters is the alpha rooster and that he is the rooster that they need to mate with.