Finally, I want to post this size comparison photo (but couldn't do so earlier, until the pink gryphon sold!). It features a King Gryphon in the background, a Common Gryphon net to it, and the Pigmy gryphon next to that. It's to, hopefully, give people a rough idea of just how big all three of these guys are - the King Gryphon standing approx. 11-12" tall, the Common standing about 8-9" tall, and the Pigmies, approx. 4-5" tall.

Not shown in the photo: Hippogryphs (which are the same size as a Common Gryphon), and Sea Gryphons (which their height is somewhere in between the Common and Pigmy Gryphon, but are much longer than a Common Gryphon).