My husband and I have five chicks, and today just started discussing the plans to build a coop, when he said that he thinks two of my chicks won't be able to go in with the other three girls because of the size difference. Here's what we have: 2 female red sexlinks, one is 4 weeks old, one is 3 weeks. 1 giant cochin, about 3 weeks. We think it's a girl, but not sure yet. 2 silkies, one about 4 days old, one maybe 6-7 days old. not super sure but they are definitely very young. also not sure about their gender. If the cochin or silkies turn out to be roos, we won't be keeping them. I plan on maintaining between 4-5 hens total. So here's my question. The older chicks will be ready relatively soon to go out to the coop, and obviously it will be longer before the silkies are ready. Will we be able to house the silkies with the sexlinks and cochin, or will the size difference cause a problem?