From your updated photos. It really looks like the dry pox that I've experienced with my very young chicks, it gets their mouth and eye areas badly. The older pullets and chickens all got the "standard" versions shown in most photos i.e. a few scabs on their comb, turned out to be no drama for them.
Check the little ones body, my worst affected chicks developed pox on their legs, feet and body. Only one of those has done really well and culling isn't even a consideration....its an ugly little warty-elephant face, with attitude and is holding its own with its siblings and finally a scab or two is dropping off....only a couple of dozen more scabs to go and it'll be a swan or just a chicken.
Check the little ones body, my worst affected chicks developed pox on their legs, feet and body. Only one of those has done really well and culling isn't even a consideration....its an ugly little warty-elephant face, with attitude and is holding its own with its siblings and finally a scab or two is dropping off....only a couple of dozen more scabs to go and it'll be a swan or just a chicken.
