A motivated squirrel can climb eight feet up a galvanized steel pipe:

The anemometer on the right has a ring of sharp wires intended to deter birds:

Chickadees can perch between the wires and squirrels apparently just ignore the sharp ends:

No matter how hard that squirrel looked, there were no nuts to be found anywhere in that tree. Moments later it ran down the pole and loped across the yard to forage under the seed feeder.
The terrible picture quality comes from a Pixel 6a phone camera zoomed all the way tight. I want an optical telephoto lens built into the phone, but those phones seem intended to reduce the risks of having severe wallet overpressure.
Spam comments get trashed, so don’t bother. Comment moderation may cause a delay.