Karen, I wish it were that easy. Those are new(ish) replacement windows. The screen worked perfectly when I raised it to bring him in. I even went back up to re-inspect the window. I thought maybe he jumped from the top of the window onto the ledge -- its the kind of tilt-in windows that both windows slide up and down. But nope, there wasn't so much as a crack at the top of the window. The screen was solid and on the track as it should be. Someone opened that window and won't admit it. I'm sure its something as stupid like they had a can of soda and didn't feel like going downstairs to pour the soda down the sink so they opened the window and poured it outside. Still... why not tell me?