Yes! There are many university tests proving that scarecrow owls will really scare birds and pests. But fake owls can become ineffective after a few days if they are not moved. Dalen’s Great Horned Owls have a biomimetic design, which is a fancy way to say that it works by copying nature. A motionless owl isn’t lifelike, and birds and pesty varmints can be smart. If you never move your owl, it will stop working! We recommend moving your scare owl every day and keeping it indoors when out of use.