Chicken feathers

[donb]

My birds/chickens feathers are not growing back after 6 months on her back and
around her neck. What can be done. The rooster is gone and the other birds don't peck her. They are all very content. What can be done for this Americana.

 

[oldhenlikesdogs]

You will probably have to wait for the fall molt, generally feathers lost due to mating don't grow back until than.