Re: Bees only using top entrance?
I also find that mine prefer the top (when I used bottom and top entrances). Yes they should move down, but should is the operative word. I have had problems with that, so I am moving to shim entrances between the brood boxes, when they have built up enough to guard it, and a small top entrance. Do check to see if the bottom is blocked, but I also doubt it.
Originally Posted by NonTypicalCPA
"What we obtain too cheap, we esteem too lightly: it is dearness only that gives every thing its value." Thomas Paine