Keeping your pool cover clean is a good way to keep smaller animals from running across it or using it as shelter. Small animals may use leaf debris on top of the cover to hide. Cleaning also removes nuts that may fall from a nearby tree that could otherwise be a tempting snack for some animals, like squirrels. 

The best time of year to remove bats is autumn until spring. In fact, many states have restrictions on bat removal, mandating it to start sometime in August and go up until May. For some states, the removal period stops in March. Your pest control pro should know of any restrictions and can help you pick an optimal time for removal.

An owl's worst enemy in the wild is often other raptors and environmental factors. Among the avian threats, larger owls or other birds of prey can pose a danger, engaging in territorial disputes or competing for food resources. Terrestrial predators like foxes, raccoons, and larger mammals may target owl nests or young fledglings. Environmental factors like severe weather conditions, habitat loss, and food availability changes can also significantly impact owl populations.

There are DIY methods and store-bought pesticides available for the public to use. However, these pesticides also come with a risk, and you need to follow the directions correctly and take precautionary measures to prevent exposure to these chemicals. These methods may be an option for small pest problems, but you should call in a pest control specialist for persistent pests and infestations.