I have chicks who are about 10 weeks old and lately I have been noticing that they seem to have no meat on them, they are just bone. They are eating fine, have normal activity level, don't seem to have mites, and appear to have fine looking poops. I think I'm going to take a fecal sample in to work tomorrow to float and check under the microscope. But, does anyone have an idea what could be happening? I've raised a couple dozen healthy chicks, and these are the first that have me worried. Also, I should add that these are mixed breed chicks my husband hatched in his incubator. He thinks this is just a mixed breed issue.