Hi @Quik1th :frow Welcome To BYC. It looks like the OP has not been online since April 2017.
I can only assume by the last comment she made, that the chick was rubbing off the feathers/formed calluses by pressing them against the plate. :confused:
Do you notice any rough spots in the...
Let me how she does. It's just that the lumps are so symmetrical that it looks like she may have been pressing them equally against the plates for heat?
Is she active, eating, drinking and pooping well?
When you watch her, is she picking/preening at those spots?
Also what are you using for heat - lamp, mama heating pad, etc.? Any chance her wings/shoulders became overheated/burned?
The lumps/wounds could be from where the others have...
Can you post some clearer photos?
I realize this is a young chick, but the lumps look to be symmetrical. Are any of the other chicks perhaps mounting this one?