I see, yea the bee escape is called a porter bee escape. It’s sort of a one way valve, lets the buggers back down under the crownboard, but they can’t get back up, apparently!
If you don’t have a super on top of your brood box, which won’t be necessary straight away, you won’t need to have the queen excluder on.
The reason for the excluder is to stop the queen from going into the super and laying eggs in there too! She needs to stay down the bottom, as your honey will be in the super.
I haven’t seen a glass crownboard before, that’s why I thought it was part of the exclu