I just put up two fake Great Horned Owls to keep the Northern Flicker woodpecker from sounding his mating rat-a-tat on my metal chimney caps. Didn’t work.
Mating season is winding down and he isn’t showing up so much. But for a solid month, fifteen minutes of noise at 6:30 am and again around 5:00 pm. I hope he finds a girlfriend soon.
The noise in the house is deafening because the metal flue is a perfect noise channel right into the fireplace.
I built a timber frame pavilion a couple years ago. Then put a couple fake owls on each end truss to keep the birds from building nests up in the rafters. They fly right underneath them and immediately built a nest on the top of the ridge beam.
You too eh, I have one doing that now.