Plus then I don't have to worry about squabbling when I'm not there to let them out at dawn. I'm pretty certain if they only had the coop before I let them out, they would fight. And even in the winter, they're usually waiting to be let out of the run, so they must be far more tolerant than meI like the idea of giving chickens choices. They know how to be chickens better than we know how to be chickens, so I figure that they'll decide how much rain, wind, shade, sun, etc. that they want at any given time.