I’ve noticed that chickens have a pretty good sense of spatial relationships. There are two pop holes in our hen house, and the chickens have no problem figuring out that they can use either of them to get in and out. Not the guineas. Whichever door she exits through in the morning becomes, in her mind, the only one that she can use for the rest of the day. If that door happens to be closed when she’s ready to roost for the evening, she’ll sit outside forlornly looking at the other open door.