Illness or Old Injury?

[BackyardBradshaw]

Any ideas what this leather-like patch of skin could be? This girl also has a small nub/nipple looking growth on her belly as well. She is about a month old and has never expressed any type of discomfort. She's acting perfectly fine now even.

These chicks have never enjoyed being held and are very difficult to catch, which is why I hadn't noticed it til now.

Shes not bleeding from anywhere and doesn't seem to be in any kind of pain. I've seen some weird chicken stuff, but am at a loss on this one.

I hope these pictures are clear enough. I was holding her on her back with one hand, trying to take a photo with the other.

 

[Tonyroo]

That's her navel, it didn't heal properly from the looks of it.