There are several ways to make your yard a less attractive habitat for moles. Protect your garden beds by installing a fence or other barrier about 2 to 3 feet deep around your garden.

Moles eat insects, so grub removal is another important way to prevent moles from destroying your yard.

Likewise, remove tree stumps, dead leaves, and other debris that attract insects to your lawn. Some plants will deter moles as well, including daffodils, marigolds, crown imperial, and alliums, like garlic or onions.

Woodpeckers may seek out homes with aluminum siding or tin roofs because these surfaces echo their drumming. Homes with wood siding are more frequently targeted as roosting areas or for food sources. If you have insects living in the exposed wood in your home, the birds are likely looking for a snack, in which case your best option is to hire an exterminator.

You should never use toxic baits or poisons, such as rodenticides designed for mice and rats, to kill or trap possums. Using these toxicants is illegal in many areas and can lead to fines or other penalties. Furthermore, these poisons can cause unnecessary suffering for the animal and pose a significant risk of accidental poisoning to pets or other neighborhood wildlife. Instead of using poisons, it is best to stick with humane methods like live trapping.

Yes, bears can smell through walls if they are close enough. Estimates vary, but experts say bears can smell up to a maximum distance between one and 20 miles. Food inside a house does not attract bears to the degree that food left outside does, though.