Hen mating other hen?

Looks like you have a gay hen. Just kidding

She might be trying to become top hen of the pecking order. That's the only thing i can think of.

 

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I had one of my 8 RIRs do this last week. My are around 10 months old & all have been laying steadily. I just ignored it. Maybe it's just frustration. I've seen female dogs try to mount each other.

 

One of our girls is like that - she mounts a smaller hen (same one each time) and tries to rip feathers from the back of her neck. It seems very much like a dominance thing, as it mainly happens when the smaller one tries to forage from the same patch of ground, and the alpha hen also steals food from the smaller one.

So far there have been no actual injuries, and it doesn't seem particularly bad, but whenever she seems to be getting a little too big for her boots I sit out there and hold her on her back (in my lap) for a while in front of the others hoping this will knock her down a peg or two. This morning's effort ended up with her peeing on my leg. *sigh*

 

It's a dominance issue. An alpha hen will mount other hens/pullets to show her dominance.

 

I agree, dominance.... especially if you don't have roosters around.

 

Hormonal issues can also cause this also. If she is still laying, thats a good sign. If she stops laying and tries to breed alot, that could be a sign of reproductive disease because of high production of testostorone.