one of my 2 year old buff orpington hens had dried blood on her head yesterday. i cleaned it off with luke warm water, but now i can see that the back half of the comb is loose from her skin and there is a small sore on top. there is no more bleeding, but it's still floppy. she doesn't seem too bothered by this, only when i try to tend to it. i don't know her weight, but she's the smallest, i would guess about 4 lbs. her behavior is normal, she's feeding and drinking, and she seems to be alert. she eats layena pellets and greens from the yard. we don't use any chemicals on the lawn. hard to tell with 6 birds what poop comes from which butt, although it all looks ok to me, as far as poop goes. they live in a large coop with straw bedding. i don't know if her comb shoudl be reattached, removed altogether, or left to fall off or heal. i'm reluctant to have it removed, as it's getting to be pretty hot around here and summers are awful, but is this something critical? again, she seems happy, there is no more blood, and the top of her head looks better than yesterday morning. any help much appreciated.