My Buff Orp. girls seem to be molting, but one of them has HUGE amount of feathers missing on her neck, wing and tail/vent. we have seen BIG black cats around it, and im worried. anyone have any advice on how to heal her, and how to fix the feather missing-ness. the other girls are pretty as hens can be, but this one is So ugly. i'll post pics when i can.