Bees that are assigned the task of pollen gathering collect and maneuverer and pack it in their pollen baskets. With the abundance of pollen on dandelions, the nectar foraging bees also get covered with pollen held in place by the electrical static charge. Once in the hive this pollen gets brushed off the bees and falls down to the bottom board. why did it end up out one side of the entrance in the patten it is in? Bees move a great deal of air through the hive. drawing it in one side of the entrance and forcing it out the other. I believe it is the air flow created by the bees that is pushing this loose pollen out of the hive.