Is this what you call a second or first molt? There are lots of tiny feathers all over the coop, I at first thought a chick had been hiding and got caught by the roosters, but I think she is molting too?
In your first 2 photos the hen looks like she has blue feathers and then the next photos i see her by a blue tarp so i figured the blue is from the light shining threw the tarp onto her backside.
If not i want some blue chickes , they would match my peacock real nice. LOL