The Tengu Descension brings together everyone on the bird-to-man spectrum. You've got 100% humans. You've got birdmen. And you've also got 100% birds. Well, you will, anyway, when the next release for them comes out. GCT has also posted up their show schedule for next year, including some new ones they've not been to before.
There you have the Convocation of Eagles. If you'd been looking for a swirling mass of predatory birds, you've got 'em.
As for the shows, they'll be headed to Adepticon, Salute, UK Games Expo, Gen Con, and Spiele. Man, I wish I could go to all of those...