I'm very happy to see the photos in the post because it looks like a hen's nipple thread on a tree, it's really cool A nest built by caterpillars. Have you ever seen a caterpillar that builds a nest? If you have, please give us a photo of the caterpillar
Yes, I saw those caterpillars building the nest many times. But right now, I don't have any photos at hand. I'll publish something about it in the future.
Thank you, hopefully you can share photos next year, success is always friends.