One of my 11 serama chicks is much smaller than the others. The chicks pictured are approximatly the same age (3 1/2 weeks). All of the little ones are active and healthy, yet this one shows feather development and size typical of a 1 1/2 week old serama. It's back is also extremely short compared to the others, something I noticed the first time I handled it after hatch. One of it's siblings is pictured for comparison purposes. I suspect the little chick is a class AA (mini) serama, but I wanted to double check with people who've raised an AA before. Thanks.