Hello everyone. We just finished building our first coop in our backyard. We have a small 4ftx6ft coop with laying boxes and two levels inside of a covered 12ftx6ft gated run. I was thinking of keeping them in the coop at night and in the run during the day. They will also be able to walk around freely in the large backyard when someone is home however maybe not everyday. How many chickens do you think would be comfortable in this type of set up?