Here's our new bee-house being made - the holes here are 8mm and 10mm and there'll be different sizes down the centre. I don't know if it'll work, but I hope so!
I read that these houses have to be in a sunny spot. We've got quite a few of those - especially today! Before we put it up, can anyone advise? Is there any danger to the bees from possible overheating if it goes in a place where it catches the midday sun as well as the morning sun?