This Falcon solved our bird mess issue. We have a nice sitting area on our back porch. My husband also feeds some feral cats here too, plus unfortunately some raccoons. The birds also liked the cat food, thus the mess. We tried several of those beach balls with owl eyes. That helped, but still had some bird mess. I purchased two of these falcons and that has solved our problem with the bird mess. So, yes, these truly work!
FINALLY.... A product that actually works. I wish I had bought tow, but thought it was just a gimmick so I bought only one. The best thing to do, is to put it on a pole at least 5 feet above the ground. I began with poles about 3 feet, it worked but when I put it higher, it worked much better. I have 50 blueberry bushes no less than 4 feet high. Some higher. Last year I lost over 50% of my crop to birds.