My question is when should I reduce the size of a warré hive for winter?
This my first year with bees and I have two warré hives both of which were populated with swarms in June. The hives were increased in size over the summer and now stand at 4 boxes high. Both hives contain a full top box and are probably 2/3 full of comb in the second box, but the end comb visible through the window is mostly empty. I have also occasionally seen bees clustering in the third box of the stronger hive.
Should I remove some boxes now while it’s still warm, or are they likely to bring more nectar in and build more comb before winter? Also how many boxes should I leave them with, just the two containing comb, or a third for space?
Thanks for your advice,