I have three little Banie chicks that I rescued from my sister who was going to kill them. They just hatched and have a hard time standing and their head and neck bend back over their back. When I try to help them hold head up right I can feel their heads rearing back against me. If I don't hold them they fall backwards and lay on the back. I have managed to get them to drink but not eat. Does anyone know what I need to do to pull their heads down into place?