DIY removal of birds or bats is not recommended due to safety risks and potential legal protections for certain species. While simple prevention methods can be done yourself, actual removal and control of an infestation should be handled by professionals who are familiar with safe, humane, and effective techniques.

Chirping noises, droppings, scratches on the walls, and stains at entries and exits are all signs that you have bats in your house or, more specifically, your attic. Because bats are nocturnal, there’s a chance that bats have already infested your home before you start to see warning signs, so don’t delay if you notice anything. If you see a bat or two at sunrise or sunset near your property, that’s another telltale sign that they could be setting up shop inside your space.

Yes, predator decoys work to keep birds away, at least temporarily. However, if the decoy remains motionless in the same spot for a long enough time, the birds will eventually wise up and realize it's a fake. Keep changing the location of the predator decoy to ensure that the birds keep their guard up and maintain their distance.

Birds are often averse to certain strong scents. For instance, the odor of predator urine, such as that from foxes or hawks, can deter them. Similarly, birds may dislike the pungent aromas of garlic, onions, and chili peppers. Essential oils like peppermint, eucalyptus, and citrus can also be effective in keeping birds away. However, it's important to note that individual bird species might react differently to these scents, so it might require some experimentation to find the most effective repellent for your specific situation.