The nucs were in cardboard boxes, so the bees were able to get in and out of a gap... I wish I would have known that before I drove three hours to pick them up and had to drive home wit a butt ton of loose bees in my jeep with me! My bees are several hundred yards away on the other side of the house, so I THINK that these were just loose bees from his nuc. It sat there overnight and then until about noon when he picked it up. There was a small swarm there for several days after, but I wasn't sure if my hive would see them as intruders if I tried to integrate them. Didn't want to scare mine away when I just got them by making them think there were intruders lol.