I'm new to Warre, having only had horizontal top bar previously. I'm puzzled by a difference in behavior between my Warre and my TBHs. While there are almost no bees on the outside of the TBHs, the Warre (which is right next to them) always has a baseball-size cluster of bees filling up the entrance and landing board. Even at night and during cool weather.
Is this typical for a Warre (or just any hive with a landing board)?