Can someone please help me understand what this is... My Maran first showed black spots and then my SLW. Now my Americauna has the same spots and red around her mouth and eyes as well. All live in the same coop and my GLW is showing the same symptoms as the Americauna. Americauna is a cross beak so treat her gently Any ideas so I know would to greatly appreciated. Can I boost their immunity or what is advised? I am concerned!