My 8 week old silkie who is still in our basement (don't ask, we are having trouble getting our coop built) was outside today in a small pen for a bit and then free ranging for a few hours with another 8 week old chick. She kept laying down sort of on her side and closing her eyes. When I would go up to her, she would open her eyes and walk around, but she would repeatedly lay down and close her eyes. Tonight she is eating, drinking, picking at a bowl of grit and walking around a bit, but when I picked her up, she closed her eyes after a minute. She is on medicated starter feed, as I also have 2 week old chicks in a brooder right now and everyone is getting the same food. Any advice?