sorry for the urgency, but I am about to go get some more chicks.... I have 27 chicks that are a week old, variety of breeds. I am about to go get 2 more, cochins. The lady that has them has week old up to 5weeks. I told her I prefer the week olds, since it is the same age as mine. Can I put these directly in the brooder with mine? I leave in an hour, so I'm hoping for a quick response!