I had six chicks hatch on Wednesday, all are thriving in their brooder, except I noticed that one chick scoots on it's belly. It's legs are underneath as if it's resting, it can move them, but it doesn't walk, it just scoots as it flaps its wings. I noticed that it's off balance and the joints at the knee are swollen and partially scabbed over. I put it close to the food and water, but it has no interest in them, the other five chicks are all eating and drinking just fine. This chick is strong and loud, it's belly is somewhat swollen, so I'm not real worried about it not eating or drinking just yet, but I am worried about the legs. I have been searching to see what this could be but have given up and decided to post to see if someone knows what is wrong with this chick. Thank you!