ok this all started last fall when the neighbors dogs killed all but 2 of my Rhode Island Reds,dogs are dealt with now.I grew up on a farm and have been around chickens all my life but guess i have been lucky and never seen a diease out break untill I just got my new chicks the 6 of Feb.they came from a hatchery that I have bought chickens and ducks from and never had any problems before.upon getting my chicks opened box 1 dead ok no big deal that happens,but the rest were never right,started them with medicated chick starter keep them indoors in a brooder kept tem right on the money,they started feathering what seemed to me to be in hyper drive,then I noticed some of them walked like they were drunk, but ate and watered well,but some gained weight some didnt, now about half of the 17 just stay hunckered down with ruffled feathers not wanting to eat or drink and when they do move they run cause they cant walk very well.well I called the hatchery and they are sending me some more they are doing me right but after some research I kinda thought maybe it was mercks but hatchery said no way it only effect 3 to 4 month old chickens but after reading alot on the net it seems that it does hit chicks, trying to figure this out so I can call them back and have the new ones vacinated,does this sound like cocid. however you spell it plz help trying to get my flock started back.I havent had any of them just outright die,but I have had to put 4 down because I cant stand seeing them suffer when I know they arent going to survive.nursery says they think they had a ruff time during shipping but Im not buying that now,at first I did but I know a sick chick when I see one, I just need to know what kinda diease this is...