Hubby and I just finished replacing the screen to the back door a couple of weeks ago. We put a piece of 12" aluminum at the bottom of the screen to keep the cats from reaching up and snagging the screen with their claws. So far, it's worked. Just now, I was sitting at the computer, beside the back door, and out of my peripheral vision, I see movement at the screen, then, a sharp object snagging the screen above the aluminum... Drat, that cat is now jumping up AT the screen, so I get up to give him some advice about his current behavior, look out the back door, to stare into the eyes of one of the Dom pullets as she's getting ready to take an other lunge at the screen. Foolish bird.