We have had a bumble bees nest in the shed for a long time. Indeed I Have had to put a wire guard over the front of the entrance to stop the cats sitting and batting the bees as they emerge. Never really bothered where the nest actually is. We did think it was under the ground as is another one we have round the other side of the shed. However, yesterday I was going to look at the old lawnmower to see if I could practice cleaning the carburetter on it before letting myself loose on the new machine, and discovered that the actual nest was under the 'bowl' of the rotary mower. So, the question is, when will I be able to move the machine without damaging the bees?