How hot is it where you are? And is there food in or out? If it's not a pred and they're just weirdos then leave food a few meters outside run door where they can see it so it forces them to go out to eat and drink, and how shady is it? My some of our hens will chill in the nest boxes on hot days cause the yard is just roasting even the wind is hot
is there something you did or moved that they may be mistaking? Our friends once chicken sat and brought thier child's large stuffed dog to entertain her and the chickens flipped out! After they realized it was fake they were good post attacking it whith vengeance o-O they also thought the lawnmower was a monster at first -_-
