Bees have a great sense of smell.

After spending the morning working in the honey house extracting honey and filling buckets, I rinsed off my hands and arms and came into the house.  Going out on the front screen porch, I hear buzzing that gets louder and louder and realize that I have bees

buzzing around right outside the screen .  Sure enough, they could smell the honey left on my hands.  I think we fail to appreciate how powerful the sense of smell is in bees.