Well, folks, it looks like a couple of chickens are getting worse. I have one rooster who can hardly walk (very stiffly), and he was holding his mouth open. I don't see any lesions on him, but he is mostly just laying around. A couple of the other roosters pecked at him a couple of times, but it was near dusk and they were all getting ready to roost. My husband wasn't coming home until late, and I had no place to put the roo. (There is an old wood brooder box which needs to have some wire replaced and a door-hole closed in, but I really need DH's help on that.) Anyway, since it was late, I figured the other chickens would go to sleep and I can check on the roo in the morning. If he survives the night and doesn't look any better, we may have to cull him to prevent any more suffering.
The other concern is my little pullet, Sasha. One of her eyes is looking infected. I did put antibiotic ointment on the area. She is eating and drinking, running around like normal. She just looks miserable because she has to turn her head around to see out of her good left eye. Sasha is very special to us, as she had curled toes on both feet when she hatched, and my daughter and I made her little boots thanks to info. on BYC. We were extra happy when she turned out to be a pullet. She has been doing so well, and it breaks my heart to see her this way. The other chickens were not bothering her, and I will keep checking on that. I may have to fix that brooder up for her. Because of my pet birds, I do not want to bring the infected chickens in the house.
I will post more tomorrow after I see how all the chickens are doing.
Thanks again, everyone. Your information and support is very helpful and comforting.