I have looked around here and am still not sure if our cornishx's are in need of a perch. I have heard they will not move much, but I was not sure when they are younger if that is something they like to do? Also, what is the mortality rate? We are only planning on 10 to start. we are not sure how it is going to go so wanted to start out small. We are ordering in a couple of weeks, so want to be prepared.