Installed it on the pond dock 5 years ago. It did attract a few geese (second photo).
These photos are 5 years old. I’ll update with some current photos as it looks now after all these summers and winters. It still spins in a good wind but probably time to take it down for some WD-40 and re-paint.
To answer John’s question, I did not use marine plywood nor specially caulk or seal the edges. After 5 years here are two photos I took this evening. The spacers seem to have prevented any significant delaminating, but the weather has faded the simple spray paint I used.
Here are a couple other rustic items I put up over the years along the gravel pond road: