The OpalB/S and the Bronze birds inside pens do have doors cut thru the walls already and they can freely go outside into the same runs they was in all summer. I am keeping these birds inside for a few days tho until they realize this is where their feed and water will be from now on.I had the cut-out opening blocked all summer so they couldn't get inside because I didn't have their inside pens completed yet.I always,always wait until the last minute to spend the money,then do the building. Every pen I build inside along the west wall will not have openings cut in the walls until next spring,when once again I build pens on the west side of the palace. The Midnights and Purples will be inside 100% of the time from now until spring.Bandbaustin told me he has inside shelter for all his birds,yet they never go inside even during a snowstorm.Mine won't be allowed to get snowed on.We get windchills here 20-30 degrees below zero and since I took the expense to build this they will use it.No excuse for frostbite.