We just picked up our almost 60 chickens on Saturday morning from McMurray Hatchery. So they are about 48 hours old. They have all been so active and lively until mid morning today. Just one of the little Barred Rocks is not acting so well. When my husband checked them this morning everyone was fine. When we went in an hour or so later to check on them we noticed one little Barred Rock was screeching, scratching at its head, falling over and kind of twitching. It also doesn't want to open its eyes. We went in an hour or so later and everyone was just fine, so we thought we were just being overprotective. A couple of hours later we went in again and it was acting like it was earlier - falling over, laying on its back, screeching, kicking, not opening its eyes. I've tried searching the website, but couldn't find anything that I thought was relevant. Can anyone offer any suggestions? This is our first time having chickens. All the others are fine and very active. We are feeding them chick starter and have Quik Chick in their water. We also put a little sugar in their water. The bedding is the wood pellets. We have almost 60 chickens, so I am having a hard time telling them all apart. Is there some way I can safely mark this little one, yet keep it with its brood? Toe nail polish or something? I just don't want it to get overlooked. Please offer any suggestions. We have two young kids and don't want them to be disappointed with loosing one. THANKS!!!