The historian Daydream Glare has written an essay on Gryphon kind and culture. Obviously, none of this is canon, and it borrows slight amounts from a few other fics. In general, most of this just head-canon that I wanted to write down. It ended up being almost 3000 words, so now it's posted here. If it's popular enough, I'll make an MST'd version where Princess Celestia, one or more of the Mane cast, and Daydream edit and leave foot-notes.