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.

Birds eat grass seed for one simple reason—it’s delicious! The seeds are rich in nutrients such as carbohydrates, proteins, and fats. Seeds are also high in energy, so humans eat trail mix loaded with seeds and nuts for long-distance activities. Grass seed, when unprotected, is also exceptionally easy to access.

Small amounts of geese are actually good for the environment. They help spread seeds and lead to more plant growth, but they’re often an invasive species, particularly Canadian geese. This means a small gaggle can quickly grow into a level that litters your lawn with bald patches and excrement.

There are a few ways to keep pesky bugs away from your garden. One option you have is to plant flowers so beneficial insects like ladybugs can control pests for you. A similar method is companion planting, which means you’ll grow vegetables that’ll discourage pests, like garlic, onions, and basil. The best pest prevention method will depend on the bugs you have issues with and the plants in your garden.