To keep animals out, you must prevent them from entering. As long as they can get in, the problem will persist. That said, consider making your attic less inviting using deterrents like motion-activated lights or ultrasonic devices. Additionally, keeping a well-maintained, clean, and uncluttered attic that you regularly inspect for activity may make the space less attractive to critters.

When it comes to keeping birds from doing their business on your porch rails, you have several DIY options and home remedies you can try: 

• Tie a fishing line from one end of the deck post to the other. Birds won’t be able to see the line across the railing, so they can’t land on it.  

• Hang wind chimes close by, which may scare birds away. 

• Apply a bird gel repellent to the railings, which contains smells that birds generally don’t like. Or, similarly, you can apply citronella or lemon oil around the railings, since birds don’t like strong smells.

Pest control and wildlife removal are different services. Pest control specialists typically handle insects and bugs, often using chemicals and poisonous sprays for extermination. Wildlife removal professionals, on the other hand, focus on larger animals. They prioritize humane methods like trapping and relocation, using poison only as a last resort. For insect problems, contact a pest control professional; for issues with other animals, an animal or wildlife removal specialist is the correct choice.

Certain strong smells may help repel bats, though this is not a foolproof method and is best used in conjunction with other deterrence strategies. Scents like peppermint oil, eucalyptus, cinnamon, cloves, and mint are often suggested as natural remedies. To create a spray, you can mix two cups of warm water with half a cup of sugar and a few drops of your preferred essential oil. Apply this mixture using a spray bottle to possible entry points and throughout the affected area, such as an attic. While this home remedy is popular, evidence supporting its effectiveness is limited.