Paper wasps build their nests from plant material mixed with saliva, which forms a thin paper like material. These nests consist of numerous compartments where females will lay their eggs. Different from yellow jackets, these wasps build their nests in exposed, yet protected areas. Some examples of places you can find these nests are in door frames, corners of garages, and outdoor sheds. These wasps prey on various insects and spiders, however, they actually feed on nectar and pollen.