Tree trimming

I heard loud noises outside when I started work. I looked out front and didn't see anything. Out back and one house down were workers high in the trees. They were trimming branches from 30 feet (9 meters) and higher. One was in a cherry picker. This guy was just strapped to the tree. This is slightly different from how it's done in Arizona.

Watching the branches come down was impressive. If they were big, they'd be tied off and would swing down and then be lowered down.