Depending upon the species, there may be up to 4,000 workers with a nest of 10,000 to 12,000 cells when maximum size is attained in September. About this time, reproductive cells are built and new males and queens are produced. They emerge, mate, the males soon die, and the mated queens seek sheltered overwintering sites. The abandoned nests are not used again and rapidly decompose and disintegrate during the winter. The Yellowjacket Worker Paper wasps usually build their nests suspended beneath horizontal surfaces, and commonly hang from eaves of houses and beneath window ledges or porch roofs.
Hornets build grayish-brown carton structures which resemble a very large inverted tear drop.
They are often seen hanging from a tree branch, in a bush, or in the eaves of a roof. Most Yellowjackets build their nests underground in a void cavity space. The Honeybee can become a serious pest when it establishes a nest within a structure. Problems result when a swarm of wild bees locates a small opening in an exterior wall, chimney or behind some flashing of a home then nests in a wall void or some other interior area. Honeybee nests are made up of many wax cells which the workers construct and reserves of honey is stored.