Thanks Lorne! According to the article, drones would have trouble getting through anything less than 5.4mm. I’m wondering why the flow hive entrance is so tight? If I use an entrance reducer, I’d have to be careful to position it at the more open end, wouldn’t I?
I didn’t measure the flow entrance from the inside (and now that the hive has bees in it, I won’t be able to easily measure it). But… when I measured the entrance from the outside, the entrance was plenty big enough, enough to not cause any worry about the size of the entrance from the other side of it. I don’t remember the actual dimensions, but, I can tell you with certainty that the metal entrance reducer I use has holes big enough for drones and those holes are about 80% of the size of the entrance opening (see photo for an idea of what I am referring too). I doubt the 2.5 degree slope for <1" wall of the brood box is enough to shrink the opening enough to matter. Once the bees are past the wall of the brood box, they can fly up.
So… I think there are 3 possibilities:
- I am not understanding your problem, maybe post a picture to help explain better
- Your hive was not manufactured properly
- There was a mistake in your measurements or something similar
One entrance height reduces to 6mm, the other to 5 mm.
Well… at least one of us is bonkers . I am reading that as the first side is 10mm and the other side is 11mm. You are getting roughly half of my numbers. I vote myself as bonkers, but, let us discuss.
Duh, you’re right. That was pretty silly of me! Thanks for pointing it out. Of course, now it all makes a lot more sense.
I guess we are both bonkers! Welcome to the club!
Ha ha, thanks for taking it light heartedly. I think it was a matter of seeing what I wanted to see.
@Dawn_SD I believe them! A mouse can get through the tiniest of holes. I once watched a mouse get through a hole in drywall about 8mm-10mm and try to drag a chicken wishbone back through . The mouse could fit but the bone wouldn’t. If they can poke their head through a hole- they can squeeze their bodies through too. Even if they appear to be significantly larger then the hole: shave the fur off and you will see how tiny they really are. Mice don’t have collar bones!