Lump on back of head

[Krux5506]

Hello! Any ideas what this lump could be from right on the back of my Easter Egger's head? I noticed it a month ago and thought maybe she just got pecked/lost a feather back there but the lump has definitely gotten bigger since then and more noticeable. All behaviors and egg laying have been the same. My guess is it's nothing to worry much about but still curious. Any ideas??

 

[cynrg8]

Is the lump hard to the touch or is is more squishy? It looks like a tumor but a biopsy would be needed to confirm if it’s benign

 

[Krux5506]

Is the lump hard to the touch or is is more squishy? It looks like a tumor but a biopsy would be needed to confirm if it’s benign

Definitely hard. She didn't seem to mind me pushing on it either.

 

[p4PaDuck]

My RIR hen has one too but much closer to the back of her comb and some feathers separate them. Doesn’t seem to affect her