The silky’s are 16 weeks and the little ones are 12 weeks.  We have been watching the difference between the two lavender Orpington and one has been growing much faster than the other one. I did some research on the Internet and have a suspicion that the larger chicken is not in Orpington but rather and Americana or as some people call them Easter Eggers. One of the reasons I started questioning the difference between the two chicks is one is much larger the the other and the larger one has puffy cheeks.