Recently I've noticed that our egg production is down and I just assumed that it's moulting season. But a few days ago I saw some spots on my Buff Orpington's face and yesterday I saw a large whitish bump on my New Hampshire Red's face. As I am looking at my Brahma's I am seeing some small dark bumps forming too!! What do they have? Is it causing low egg production? How can I cure it? What do I do??