I just brought home 6 Rhode Island Red pullet chicks last weekend, and the tiniest one is not doing well. She had been feeding alongside the other chicks and drinking, but getting kicked aside somewhat because she is a bit smaller that the others. Now she closes her eyes a lot and her crop is hard to the touch, while the other chicks are soft- is there anything I can do for so small a baby? I've pulled chicks through other things, but never dealt with this. HELP!