Bald-faced hornets are extremely protective of their nests. They are equipped with a very poisonous stinger in the event that they need to defend themselves and the nest. The stinger is not barbed, so they are capable of stinging multiple times (Nature Mapping Foundation. 2008). Many animals ranging from the big brown bat, raccoon, and bullfrog are predators of the bald-faced hornet and its nest. Many various birds and other larger insects often prey upon bald-faced hornets as well (Moran.2012).

These hornets also have a very positive effect on the environment. Using nectar from plants as a food source allows plants to pollinate, and reproduce.