I got my first chicks Thursday morning, shipped from Meyer on Tuesday. Except for one pasty butt, they were all very healthy and active. But since then, one chick seems to be declining. I noticed yesterday that she was lethargic and today she seems to stumble easily when walking around. I can't figure out what the problem is. What I've observed: she eats normally. Medicated chick feed on Thursday and Friday. Today I mixed some corn meal in because I read that it can help with pasty butt (has been a problem for a couple of other chicks, but not for her). I haven't specifically seen her drink on her own, but she drinks easily when I put her beak near the water. She knows where the waterer is. Thursday and Friday I offered diluted Pedialyte and today plain water. She often rests under the heat lamp, standing up and snoozing by herself. She's not as motivated to huddle like the others do. She's very passive about being picked up. Her eyes are open and she'll look at me, but not much reaction otherwise. When I lower my hand back in the brooder, she doesn't jump off like the others. Just stands there. She's still somewhat vocal, but yesterday she was holding her wings out a little and chirping a lot. It's definitely less today than yesterday. I know this just sounds like a sleepy chick, but it's the stumbling and the decline that concerns me. I don't suspect coccidiosis, because the bedding isn't moist, the other chicks are healthy, and she has a perfectly clean vent with no diarrhea. I had Meyer vaccinate the chicks for Marek's. What else can I do? Thanks!