We live in the country and have continuous problems with scissor tails making their nests under the eaves on the porch. The owls worked very well.....for a while. You have to constantly move them, or the birds are "on to them". Its funny to watch their reaction when you first put them out. It is quite the deterrent. Sometimes the heads are stuck from heavy winds, but can be corrected easily. Be sure to fill the container all the way with sand to keep them sturdy. Remember, they are birds of prey, so don't put them on a counter or a table. They should be in natural areas that an owl would truly roost. .