Has anyone else noticed the old chicken coops on some old farms...around here the buildings were around 15 by 30 ft...more or less...but one thing that they all have or had...is windows in the south facing wall...lots of windows! And sometimes shutters and removable window awnings, for in the summer...I will see if the one that I am thinking of is still there...I think they turned it into a work shop and storage building. I've collected a few old books on chicken keeping, and they have pictures of these buildings...let me know if you have seen them in your area.