The hen that pulls the feathers is not bigger, but I have seen her walk up pull out feathers and eat them. Her feathers are perfect no problems.
As far as mites go, I always put DE in the coop with the pine shavings. I have never had or seen mites.
Whats wrong with these hens? I have one hen that likes to pick at the other hens feathers. Could that be what this is? I have looked them over very good and don't see any mites.
Some good names for your baby chicks would be.....
Pepper(any of the black ones)
Sophie
Fluffy
Honey
Anna
Chookie
Nellie
Lulu
Chicken Little
Lucy
I hope you consider some of my chick names!