Two nights ago, instead of going into the coop with everyone else, 6 buckeyes decided to hunker down at the back side of the coop because they couldn't figure out to go around the corner to find the coop door. Tonight I had to find 10 chickens, some of them GLWs hunkered down against the garage wall under the electric meter. That's down the hill, through the fence and more than 80 feet away from the coop. The guineas never have any trouble find their way back home. I now know for sure the origins of "bird brain".