Use physical barriers like mesh, wire, or by sealing holes and cracks to prevent birds from building nests in unwanted spots.

The bird kept at it—and even expanded its area of interest. Cornell also recommended trying predator decoys, audio sounds, and reflective deterrents. Affixing a plastic owl to the house and ...

And demand is growing fast: a Fortune Business report valued bird deterrents as a $315.2 million industry in 2019 and expects it to hit $517.43 million by 2032. That said, some solutions ...