I would like to suggest that you call the State Vet and have him tested. You may be dealing with a respiratory issue and it could make all your birds carriers. I recently lost over 30 chickens that had to be culled because of MS (mycoplasma synoviae). From reading here, you have invested a lot into lots of different breeds and I would hate to see you lose them all by not finding out. Some of your symptoms sound similar to what mine experienced. Another bit of info, if you all visit each others farms, you can spread this stuff to everyone. I hope for you it isn't anything serious but if it were me, I would have to know.Both of GAM's big Marans roosters had their right eyes shut and full of pus yesterday. We caught them and cleaned them and got their eyes open. Today they both had both eyes shut. Broke butt was very lethargic and you could see that white nasty pus in his mouth. If what flower posted is what they have, it's viral and I don't suspect broke butt is going to make it. Whatever it is has hit him harder than the other one. At least he still has one eye open and is up and walking around. Broke butt just takes a few blind steps at a time and bumps into stuff. It's kinda like watching an old blind dog try to get around after rearranging the furniture.