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first off, i'm glad to find this forum. I have 5 Rhode Island Red chickens--2 roosters and 3 hens. They are about 6 months old. Today when I was out feeding them i found the rooster laying on his side and not willing to move around unless I make him. He will get up to eat a bit and drink some, but goes right back to laying down. he's normally really fiesty, won't let me near him and will bite if we get near him. he allowed me to pick him up and inspect him--very much abnormal. their pen has been in need of a good cleaning and fresh bedding for a while, but we've had so much rain, my bedding was soaked so I went to town today and bought some wheat straw and cleaned everything out as good as I could, cleaned out the feed and water bowls etc. what do you think it could be and how should i treat it? i've never had chickens before so this is all new to me, thanks