1. I have n e v e r had a mouse in a living hive.
2. If I can't get my baby finger into the bottom
board opening, no Maryland usa mouse of any
dimensions has ever gotten in.
3. I always run the s h a l l o w side of the BB up.
4. Entrance reducers mean extra cost and extra work.
5. I have n e v e r used an entrance reducer in
35 consecutive years of beekeeping.
Ciao - still learning, however.
Jack the B-man
John Iannuzzi PhD * "Singing masons building roofs
9772 Old Annapolis Rd * of gold." --Shakespeare
Ellicott City MD 21042 usa * 20 Italian colonies
[log in to unmask] * 3-1/2 decades in beedom