Like keeping domesticated cats inside. According to the Cornell Lab of Ornithology, cats are responsible for 2.6 billion bird ...
That said, some solutions definitely work better than others and finding the best bird deterrents can require a lot of trial ...
If you have a big window or glass door that birds have crashed into, break up the reflections by covering the outside with decals ... Putting up bird feeders, or even scattering birdseed on ...