Watched one of my hives with a good population of bees appear to be preparing to swarm. A large amount were flying in a cloud all around the hive and nearby in the yard. Numerous bees were on the front of the hiveand porch. This built up in intensity and then gradually decreased as the bees returned to there normal everyday behaviour. It's been raining quite a bit so the bees have been shut up in the hive and this occured during a break in the rain. Has anyone seen this type of behaviour?