Hello, I will be recieving my chicks Mon or Tues. I ordered all Bantam breeds, but I am also looking for some older Buff Orpingtons. My coop should be done this week, and I want to put the started Orpingtons in the coop. Will there be a big problem having full size chickens and banties in the same coop? It doesn't get colder than 80 at night, so I am hoping to put the chicks out in the coop in about a month. Any advice?