Constant bald spots on my Ameraucanas

[NoleJoe]

My Ameraucana hens have bald spots in front of their tails and they are always bald. I thought it was molting at first but they never get new feathers. They have been that way for over 6 months now. Any ideas? Here are some pics:

 

[MamaRoo]

Do you have a rooster?

 

[NoleJoe]

Yes, just one.

 

[NoleJoe]

Do you think the rooster is doing this?

 

[MamaRoo]

yep. It's a handy place for the roo to hang on...