May God bless you too.
Probably a tumor.
Cut it open. If the inside is solid, it's a tumor. If the inside looks like blood vessels and is just blood, that's probably an angioma. If the inside is a weird liquid, like pus, it may be some sort of infection. A tumor is nothing dangerous to you and, in fact, you could eat it if you wanted. Cancer isn't contagious. An angioma is an abnormal growth of blood vessels, which, again, is harmless if eaten. Probably gross. If it's an abscess or full of anything that doesn't look like it belongs in an animal, it may be an infection, and I wouldn't eat the bird in that case. Just in case it's through the whole body.
In that case, probably an angioma. Maybe a tumor or something else of the sort. The point is, it seems to be an abnormal growth, which is nothing to worry about. Carve off however deep it's gone to remove any weirdness that would be unpleasant to eat, and voila. Maybe keep and eat that one instead of selling it, if selling is your plan. It's like a bent carrot- edible but not the prettiest.