Maybe it’s time for a little explanation about the wings.
My Beast lives in the lands of the (not so Ancient) Aztecs, they believe the creature is a gift from their God Quetzacoatl, to help them build those grand stone cities, build out of massive rocks. How else do you believe these rocks got there? (Don’t say the Atlantiens build them, might be true but it messes with my story
).
Quetzacoatl is a feathered snake (wings included)(oh and with thanks to fedron), hence the feathered wings.
I’m thinking of calling the beast a Quetzal-Drake.
The drake sleeps like a bat/flying dog (hope thats right in English) or he might sleep like a bird, I’ll have to do some more research.
Hope you like the little story 
But enough talk, here’s the update:
I remodeled the feathers because the old were to high poly.
The other additions should be clear.

A bigger version is available right here !!
The image is 393kb, so please be patient while it loads.