I had 10 chicks, lost 3 in 3 days after delivery. Now one of the seven doesn't seem to be growing and sometimes stays away from the others. she has eaten a little at a time, seems to be drinking some water. checked her vent and nothing there, she is somewhat hunched over, feathers are coming in slowy, not like the others. This is my 2nd time with babies and it kills me to lose any of them. I have 10 more coming next week. any suggestions?