I am starting to think about what kind of nesting box I want to put in our coop(s). My oldest hen is about 12wks so I have a little time, but I don't want to be scrambling to figure it out at week 20. I'm looking for a nesting box that is attatched inside the coop rather than one that you reach into from the outside to collect eggs. I could cut a hole in the back of one of our coops if I really had to, but I would rather avoid that. So any pictures you can give and directions on how to build them would be really helpful. Thanks!