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. 

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.

Trees that provide a habitat to bats and an abundance of bugs—their main food source—will attract bats to your yard. Because the North American landscape has changed so much in recent years, bats have a harder time finding trees with cavities to shelter in. If your yard has a dead or dying tree with a lot of sun exposure, bats will likely be drawn to it because trees with those features are less common.

Natural swimming pools are designed to deter pests, including mosquitoes. While any body of water can potentially attract pests, the natural filtration system keeps the water clean and constantly moving. Mosquitoes specifically are attracted to standing water, so the continuously circulating water in a natural pool makes it an inhospitable environment for them.