i have a sick chicken. the following is the long story. about a month ago one of my chickens got attacked by a predator, when i checked on the others, two where on the floor of the coop and not the roost. (they usually roost). The next morning i notice the two that did not roost, did not look well, droopy wings, kinda moving slow and, sleeping a lot. by the end of the day one died. i started to give the other probiotic, the other one died about 3 days later. I did cut her open, the only thing that looked abnormal was a large very green spleen, no worms or anything. A day later another chicken started with the same symptoms, i started her on probiotic, and also cocci free, she would perk up for a little bit then go down hill again, this has been going on for a month, now my rooster doesn't look well. please help. The first hen that died had one eye swollen shut, the current hen that is sick as an eye swollen shut and dirty nostrils. all hens about 2 years old, not currently laying,(i thought because of change in season.) both the roaster and hen are eating and drinking well. Both the rooster and the hen sound funny when the try to cluck. the rooster has not crowed in days. any help would be appreciated. thanks.