so we currently have a smaller coop, I’d say 3’x4’x4’. It has 4 nesting boxes and is inside a 6x10 dog kennel (for locking up at night). We also have an attached run that is roughly 12’x20’ that our chickens are able to roam in during the day unless we allow them to freerange in the yard. Currently we have 3 older hens and would like to increase our flock this spring. How many birds do you think would safely fit into the coop at night without overcrowding? As stated earlier, they have a large run area they are allowed to roam from dawn til dusk. We are in New England so having them fitting comfortably into the coop for cold nights is important.