I had a two day old chick (had a tough start) that suddenly started hobbling around on curled feet then died the next day. Today I found a second chick laying on its side, legs stiff and straight, moving and peeping occasionally, but not opening its eyes or able to stand. They have been on medicated chick starter and probiotic chick boost since hatching. I decided to try a chick cave for heat instead of a heat lamp from day one for this batch. Previously, I've used it with two batches of one week old chicks who did well. This batch has seemed fine with it as well, they are not huddled together and are in/out as they please. This is the first batch of chicks hatched from our own backyard flock. The rooster was introduced about one month ago. First, is there anything to try to save this chick? Second, what might be going on? I don't want to lose the other chicks! Thanks.