I asked this over on the Okie thread so sorry if you are getting a repeat of this. We bought a dozen chicks at auction last month. The chicks are now 3 1/2 weeks old. They all looked the same at the time we bought them but slowly over the last 2 weeks we have notice this little one not growing as fast. Feathering at the same rate just not growing at the same rate. We had to remove it from his/her siblings because now they are at least 3 times his size and were running over him. I worried he would get hurt. So we put him in with our 1 week old chicks. His barring is not white like the others. He/she looks like the barring is brownish/rust color instead. Anyone got a guess on what this little chick is? He/she is now 3 1/2 weeks old and just a tad bigger than one week old marans chicks. Eating and drinking fine and otherwise healthy.