Very clean and beautiful hive. What is the apparatus on the front entrance that has the little holes in it. I can't quite make out what it is. Great day. Cindi
Thanks, I painted it myself
The apparatus is a universal metal entrance reducer or mouse-guard. I found that one at Dadant: https://www.dadant.com/catalog/product_info.php?products_id=212
I'm not sure why you need so much room at the top, but the vent will allow ventilation and if the telescopic cover is slid forward it will let the bees out if the bottom entrance gets plugged. Bees are creatures of habits so don't be surprised if it takes them a while to take advantage of it.
Thanks again for your help. I have learned a lot from your webiste. Originally, the extra room up top was for the application of the Apiguard. You can see the tray in the top photo. The instructions said to put an empty super on top, but that seemed like an excessive amount of open space, so I made the small riser out of 1x2s and trimed the notch in it. Now the mite treatment is over, but I thought of leaving it for ventilation. Some suggested simply proping up one end of the telescopic cover. I could have done that with some wedge shaped shims to block of the sides.
This is my first hive, so I'm still trying to learn the best way to winter them in this climate of extreme temp swings: During most of the winter and early spring, the difference between the lowest possible temps and the highest is often about 100 degrees (F). For example lows of -20 to highs of 80 possible on any given day. They need to be protected from the bitter cold when it might drop to -20 overnight one day, then given enough ventilation to keep from baking when it goes up to upper 70s or even 80 on a warm sunny day. I'm planning to add another hive in the sping - would the Polystyrene hive bodies be a good idea?