Just had another look at photos and wondering if it is a carcinoma of some type? Or ring worm type growth...
Best to just contact Libby - no point guessing..
Could you let me know how you get along - its good to learn.
Bev
HI - this does not look like something that can be treated with anything that you can find to hand... Without a doubt the best thing to do is to contact LIBBY at Retford Poultry.
http://www.retfordpoultry.com/team.html
If you speak to her and describe the symptoms she will probably ask you to...