In Skyrim there could be Glacier Racers (i stole that name from someone I forget who). They could fly really high up and when you go underneath them they shoot downwards like a hawk or an eagle. They would be a stealthy species too so they would not squak and screach. Bethesda would do this just to clean the name of the Cliff Racer.
They could possibly be a sub-species of Cliff Racer that inhabits Skyrim which could look more bat-like, with thick icy fur and small horns or antlers for that nordic feel.
They could also have an ability to walk on land like http://www.youtube.com/watch?v=xlTdSqgZEP0&feature=related.
Sorry if this post has drifted from the topic of St. Jiub, but i'm nearly falling asleep at the moment...
edit: Ignore the bit about walking, I just realised that cliff racers don't even have legs :facepalm: