We recently moved our nucs into regular sized hives. We opened up one hive and found the queen on top of the inner cover. What is the queen doing there? Since it was a relatively new hive to her we assumed maybe she got a little confused, so we gently guided her back to the opening of the inner cover and back down into the hive.
Beelievable 
Do you use an excluder os some kind?
No, we did not have an excluder on this hive since it was a nuc we had just moved into a deep.