What makes bees not able to fly?

Question

In the last couple of days, I am constantly seeing bees walking in my driveway, and they are not able to fly. We had a little rain earlier in the day that this started, but not nearly close to the storms that we have had so far this summer. I have tried to urge them to fly, but they just hop and walk faster.

Answer 1

Maybe a chemical in the air that they are intolerant to or the water on their wings may still be drying.  

Answer 2

If You Looked At Them right after the rain its because there wings are soaked with water. Or Maybe There Tired Or Fat?  

Answer 3

i think its called bee colony collapse syndrome? maybe cause by new pesticides put on the market designed to kill parasitic wasps but kills their relatives the bees as well,

Answer 4

  Look around for some fermented nectar

Answer 5

maybe they are sick or dying