So I kind of have the same problem. I have one hen (black cochin) that my two roosters won't stop mating with her. I feel like she is very submissive and they know this. The other hen (white leghorn) will squat for them when she wants, but its on her terms. I let my chickens free range for a bit in the evenings, and as soon as the roosters see her they both got at it. This last time, they both got on top of her at least 3 times each within an hour. i had to kick them off her. While the other hen enjoys her peace just foraging away without a care. Will this eventually stop or will it continue? Also, I saw something about a saddle?