Bumble Bee-Busy Pollinator. This large, hairy, insect is one of the many pollinators in my backyard gardens. Many visitors to our house are intimidated by these fuzzy guys but in reality, they are not an aggressive bee. The males do not sting because they do not have a stinger, and the females with the stingers only attack when the nest or they are disturbed. This little lady is very happy visiting the pretty rose colored flowers on a milkweed plant in my backyard garden.