Just an observation. Today during a violent thunderstorm with 60+ MPH gusts I happened to notice that the Hummingbird feeder on the deck did not move at all during the storm.
At the same time the other bird feeders, which are cylindrical, swayed 12" or more.
Just wondering if anyone has ideas why this hummingbird feeder is not affected by the wind.
Wish I had a wind tunnel to see at what speed it does start to sway.
Maybe this shape, or the bar spacing is key.