Woodpeckers peck at the break of dawn and take a break whenever the sun is not shining. On sunny days, expect pecking from dawn to dusk. On cloudy days, expect sporadic pecking when the sun peeks through. These birds are most active in the spring; you’ll hear them drumming as soon as the weather turns warm. 

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.

It's advisable to avoid using harmful methods to eliminate birds. Poisoning birds is inhumane and can have unintended ecological consequences, affecting other wildlife and pets. Similarly, using firearms or other lethal means poses safety risks and could be illegal in many areas. Sticky substances like adhesives can cause birds to become trapped and injured. Lastly, playing excessively loud or distressing noises can stress birds and humans. Focusing on humane and environmentally responsible strategies is essential when dealing with bird issues.

They can have a deterrent effect on birds to some extent. The reflective surfaces of these objects, such as aluminum foil strips, CDs, or reflective tape, create flashes of light and movement that can startle or confuse birds temporarily. However, some birds can become accustomed to these visual disturbances over time and might adapt their behavior accordingly. For a more sustained solution, combining shiny objects with other deterrent methods shared here is often beneficial for creating a more comprehensive and effective strategy for bird control.