It's not the greatest photo but I just noticed this odd lesion on the back of one of my chick's neck. Since I'm a complete novice, I would love to get opinions on what this might be and how to treat it, if necessary. At first I thought it might be a scabbed-over wound but I doubt it. There's no sign of inflammation and it is raised and extremely dark and 'lumpy'. She doesn't seem to be in pain, is eating, drinking, and interacting normally, and all the other chicks in the brood (24 of them) seem fine. I got these chicks from a hatchery and they have never been in contact with other chickens or in an outdoor coop. From reading the books I'm worried about Fowl Pox virus but I'm hoping there's a less worrisome explanation!!! And advice, comments, or opinions would be VERY much appreciated!