I found this directly across a ravine from a massive nest.  Why?  Is this made by something and has a meaning because where it is placed or what?

I have found things that were purposely made.  I have yet to find answers that would explain how known species of wildlife in our forest can do this.  Natural causes have certain signs and patterns to look for.  When absent what could be doing this?

I know who made this.  Do you?