Black skin on Chicken?

[Tyranno-Chicken Rex]

Hi,
My ~16mo black sex link chicken developed dark slightly swollen skin around an area where her feathers were picked (the feather picking happened many months ago and she is beginning to grow them back on other parts). The other skin is also red and yellow, but I am hesitant to say it’s a mite/parasite because she has been eating and sleeping regularly and engaged with the flock. (The only difference in behavior between her and the other chickens is that she is not really aware of her surroundings but I thought this could be a personality thing.) I’ve attached a picture of the area in question. Her feathers also look a bit greasy and ruffled, but she may just be in need of a good dust bathing.
Thank you.

 

[Eggcessive]

It probably is residual damage to the skin from pecking. It does not look serious. She is growing in new feather shafts, and could be molting.

 

[Tyranno-Chicken Rex]

It probably is residual damage to the skin from pecking. It does not look serious. She is growing in new feather shafts, and could be molting.

Ok, thank you! It did not occur to me that she is around molting age and it could be that