Mystery Tree and Mystery Thing

I found this tree last summer, on July 28th and walked closer to look at the leaves to see what kind of tree this was, but I still didn't know.

Then I looked up and saw something in the tree. I didn't know what that was either.

Zoomed in but that didn't help.

I spent countless hours researching the tree and the "thing" that was in the tree, and I still don't have any answers. I came up blank on the tree and the closest I could get to the "thing" was a cut worm, but I don't think that is what it is. I went back to the tree three weeks later on Aug. 21st to get another look. That "thing" was still in the tree and it was larger. Not knowing what kind of tree it is, I can't research any diseases it may get.

So, this is a mystery post. If you have any answers, I would greatly appreciate your help.

Thanks for stopping by!

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