Spiders balloon by use of negative charge repulsion. Spiders can sense the change in the static charge to the ground through hairs on their bodies. When the surface they are on builds us a strong enough negative charge, the spider can spin out a line of web, which then, also takes on the negative charge. With a long enough web fiber, the repulsion of the web strand to with the ground becomes strong enough to lift the spider into the air.
So, is that “hedge” in Austin Texas?