I took my feeder off today and put the inner cover on my 2nd brood chamber. I then put the telescoping cover on and realized that the notch in the inner cover is covered up by the telescoping cover!
There is a small gap there - probably enough for a bee to sneak in or out if they want. Is this what I'm after?

I don't see that it offers much ventilation this way. ::: shrug ::: Maybe - I dunno!

This beekeeping thing makes me feel so stupid at times!