We check our bees once a week and when we arrived we found one of our hives bearded up.
We initially thought the bees were just hot because we have been having record heat for late February. It was 87°F (31°C)! But after we opened up the hive to really see what was going on they were full and needed a second floor. The bee population within a week literally exploded in this strong hive.
We will likely split this hive very soon to prevent the queen from swarming.
So before we said goodbye we added a second deep with both built and unbuilt frames to give our bees some more room.