I use a notched inner cover with the outer cover pulled back. Does that count as another entrance? I know It really keeps the moisture off the inside of the outer cover for me.
I hope you don't drill the hole between the hand hold and the top of the box, or in the hand hold, or at all. I don't know why your advisor thinks its necessary, I don't. I have equipment that I bought that has holes drilled in one face. Some times it gets used, some times it doesn't.My first hive is just a few weeks old and my frames are filling up with brood and looking good. I added a second deep box with 8 frames. It seems to me that everyone has different opinions on every topic I research. The guy I got my hive from recommended I drill a hole in the upper brood box for a second entrance. Do most of you do this or is it not necessary. Interested in the pros and cons of a second entrance.
That's during the Winter, when bees don't fly. It's a vent to allow airflow as much as anything.Michael palmer does it to avoid being suffocated in deep snow. It also allows them to bring nectar directly to the honey stores without initially storing it in the brood area.