We have 12 that hatched and are now 1 wk old. One of them is noticeably unable to hold his head straight. We aren't sure if we didn't notice it at first, because we thought he just looked like he was still cramped in the shell, or if it wasn't there. Now its obvious. If we force his head upright, he is quite uncomfortable, and we can't make it tip the other way at all. He is as active as everyone else. Seems to be eating and drinking fine. Not sure if we should try vitamins? Patience? I don't want a chick in pain, but I don't want to cull a chicken that has a chance.