Help! I have a yellow finch eating my fiberglass (nylon?) screens. What should I do to deter them?

Question

He is really cute and I do not want to hurt him, and fortunately screen is cheap (yuck, yuck, yuck). He clings to the window screen, bites the screen and twists his head until it breaks. He has left several holes the size of quarters to 50 cent pieces.

I have also seen him pecking on the underside of the neighbors siding on the house.

Thanks for any information you may have!

Answer 1

Not sure if it will work or not, but you can buy some bitter apple spray and spray it on the screen.  

The spray is non-toxic but it will leave a bad taste in the bird's mouth.