I have a young cockerel that has had a growing lump on his face for a while now, it started off small but has grown quite large now as can be seen in the picture. It is very hard and almost feels like it's a part of the chicken if that makes sense. I am planning on culling him tomorrow anyway but I'm asking this question as I now have a hen that is starting to develop the same lump although hers is still small so i would like to treat it if possible but i need to know what it is first.
Thanks in advance.
Thanks in advance.