It can be difficult to know what type of animal is in your attic until you see it. But several clues can help you narrow down the suspects:

• Sounds: Smaller animals like rats and mice make scurrying and tapping/gnawing sounds. Larger animals like raccoons and opossums make louder clambering noises. Also, note when animals are noisy: Squirrels are active during the day, while rats are busiest at night.

• Droppings: Rats and mice leave small, rice-shaped droppings (the rat’s version is significantly larger). Bigger droppings belong to larger critters like raccoons. As long as you’re not squeamish, an image search can help you identify what you’re seeing in your attic.

When in doubt, take photos of damage or other evidence and show them to an experienced pest control pro.

You can take multiple approaches to keep animals out of your edible landscape. You can use natural repellents such as mint and cayenne pepper to deter them from your garden. You can also build a fence (or opt for a privet hedge) or keep the most enticing plants in a sectioned-off area. The most efficient method of keeping your four-legged guests at bay is to determine what animal it is and create a customized plan for them. 

Trees that provide a habitat to bats and an abundance of bugs—their main food source—will attract bats to your yard. Because the North American landscape has changed so much in recent years, bats have a harder time finding trees with cavities to shelter in. If your yard has a dead or dying tree with a lot of sun exposure, bats will likely be drawn to it because trees with those features are less common.

Maintain sealed entry points, use deterrents like spikes or sonic devices, and keep areas clean to discourage nesting.