EEEEEEK! When I let my 3 Faverolles hens out of their run to roam the back yard this morning, I discovered one hen has a black tip on her comb. Obviously the tip is gangrenous and I've no idea how that happened. Am I right or wrong to assume the black tip will just fall off, in the manner of how lamb's tails are rubber banded so as to obstruct blood supply, causing the tail to rot & fall off. Will my hen's comb tip fall off on it's own, or - heaven's forbid - will the gangrene continue to absorb and rot the remainder of her comb(!)? Anyone have the above problem? What should I do? Nothing? I'm assuming if I did anything to the black comb tip my hen will bleed or will experience pain(NOOOO!). When it rains, it pours - one of my other hens has developed a funny sort of skip walk - I suspect foot mites or some such and have some food quality Diatomatious Earth at the ready so hopefully I can nick that in the bud... I hope... Anxiouly awaiting response from more knowledgeable souls.