Also I am not sure what that black spot is in the middle of her comb. That appeared one day last week when it wasn't cold and I thought at first she just got something stuck on there like a piece of blueberry skin or something but it is still there. Not sure if she got pecked by one of her sisters or if that is something to also worry about.
The black spot looks like a scab, could be from pecking, or from scraping it on something (i.e. wire fencing).