mites??

[bobby2170]

hi guys. i noticed that on one of my hens a bare patch of feathers. is this her pulling them out or mites? if it's mites how do i treat it?

 

[ChickNanny13]

No idea if it's mites however I use (read here on BYC) about dusting chickes, coop & nest boxes with DE (diatomaceous earth) food grade. Others will peep in with help...