I could not find a "quick" answer searching the forums so I'll ask....
I stopped by our hives today and noticed a rather excessive number of bees flying in a sort of "cloud" around the landing board similar to what I have seen occur at times when inspecting the hive only I have not been in the hives for several days. This hive has two deep hive bodies, one medium and one shallow honey super.
Any idea what these gals are up to? Should I break open the hive and check for swarm cells, etc.?