When you break a bee hive it drops honeycomb but no bee item. Instead a single entity spawns that looks like a swarm of bees. It would be aggressive to players and drop a bee when killed.

You could also have a chance that a Bee Swarm would be produced by apiaries that are full (64 bees) to simulate the natural behavior of bees.

That would be cool. Something could be done with the excessive amounts of bees you get. Maybe a potion? Fertilizer?