Many different types of animals like to build nests in attics. The types may vary depending on your home’s condition and location and you can prevent them by sealing off entry points and eliminating food sources. The most common critters that like to build nests in your attic include:

• Raccoons

• Bats

• Squirrels

• Mice

• Rats

Numerous predators kill hornets, including frogs, birds, lizards, bats, spiders, and hedgehogs. Some larger predators, including rats, skunks, and racoons, will occasionally attack a hornet nest in order to eat the larvae inside. These natural predators typically don’t eat enough hornets to make them an effective form of hornet control. 

When woodpeckers start banging on your walls or roof, they are probably looking for insects to eat, storing nuts for winter, drilling a hole to make a nest, or communicating with other birds to establish territory or find a mate.

The size of the hole can help determine the reason for the pecking. Small irregular holes are a result of insect hunts. Acorn holes are more consistently sized and often fitted with a nut in the middle. Nest holes are large and have rounded edges. If the bird is pecking to mark its territory or attract a mate, it may leave dents rather than holes, and the noise will stop when the mating season starts in spring.

DIY treatments may help minor issues, but professionals provide long-term solutions and prevent recurrence.