Bald Faced- Hornet

The distinctive nest of the bald-faced hornet looks like a grey, papier-mache basketball and can house between 60-100 wasps. The bald-faced hornet prefers to nest in higher areas such as in trees, shrubbery, and bushes. They also attach their nests to eaves, sheds, and utility poles.

Bald Faced Hornet Nest

A common Bald Faced Hornet Nest in a tree.

The nests are made of a paper-like material of chewed wood and saliva. The nests can be as big as 24” high and 18” across. Each nest features just a single hole for the hornets to fly in and out and the rest of the nest is completely enclosed. Once the nest has been used for the season, it will be abandoned the following year and the colony will rebuild from new materials.

Bald Faced Hornet Nest

An common Bald Faced Hornet Nest in a tree.

Learn more about Bald-Faced Hornets and their habitats here.


While yellowjackets prefer to nest in the ground, they are opportunistic and will nest in and around the home in many different places. Common nesting areas are attics, wall voids, under porches or eaves, gutters, and soffits as well as hollow trees and bushes.

Yellowjackets sometimes nest under eaves or houses or in other strange spots. This one was found in a fallen fence post.

Yellowjacket Nest in a fence post.

A Yellowjacket in a nest built into a fallen fence post.

And under a set of deck stairs….

Wasp Nest in Milwaukee, WI - Bug Man and Queen Bee

A Yellowjacket Wasp nest built under a set of deck stairs.

The nest of the yellowjacket is made of a paper-like pulp made up of tiny bits of wood fibers mixed with saliva. Typically, the nest of a yellowjacket can reach the size of a basketball if left undisturbed. They often take the shape of an upside-down umbrella when visible. Nests that survive multiple seasons can become much larger and will often have multiple queens.

Yellowjack Wasp Nest in Ozaukee - Bug Man and Queen Bee

An cone-shaped, Yellowjacket Wasp nest build under the eave of a house.

Learn more about Yellowjackets and their habitats here.

Paper Wasps

With over 22 species in the U.S., Paper Wasps are quite common and are identifiable by their brown and yellow coloring as well as their umbrella-shaped nests. Paper Wasp nests are distinguishable by the open, exposed design that looks like honeycomb.

Paper Wasp Nest

A colony of Paper Wasps and their nest built under the eave of a house.

Their nests are built using a water-resistant, paper-like material that is made from fibers from dead wood and plant stems mixed with saliva.

Paper Wasp Nest

Paper Wasps and their nest.

Paper Wasp nest

A close-up image of a Paper Wasp on its nest.

Learn more about Paper Wasps and their habitats here.

Mud Daubers

Using their mandibles, female mud daubers carry wet mud to create nests consisting of several side-by-side tubes that resemble organ pipes.

Mud Dauber Nest

A common, tube-shaped, Mud Dauber Nest.

Each tube holds an egg, and the female will place inside a paralyzed spider as food and seal the tube to keep the egg safe. When the babies are ready, they bore out of the tube, creating a new hole on the side of the tube.

Mud Dauber Nest

The cross-section of a Mud Dauber Nest containing larvae.

Mud daubers prefer to build these nests in protected spots such as under eaves, in garages, sheds, and attics or on porch ceilings or window ledges.

Mud Dauber Nest

A close-up image of a Mud Dauber and the tube of their mud nest.

Learn more about Mud Daubers and their habitats here.