I have heard that they work, as long as you have them at the right eye level for the predator.
They work for deer for sure as my friend has the 4 sided one for her yard, she does move it fairly often though as the deer figure out it's stationary and move in eventually.
They work for deer for sure as my friend has the 4 sided one for her yard, she does move it fairly often though as the deer figure out it's stationary and move in eventually.