Now, other than the SS, every chick I have does well and acts strong. Are these weak birds in the hatcheries? I got some from mcmurray and some came from another hatchery. ALL of the chicks are much weaker than the ones I hatched and the others that came from the hatchery. I got them from two different people, two different hatcheries. I got other chicks in the same order and they are all fine! They just don't seem to thrive--one actually died out of the first round. :-( Same care and everything as the other chicks.