I guess this is my area
I did a bird animation a while ago....
http://theonlyt.com/Main/Animations/sparrow.jpg
The wing rig consisted of 2 main bones and a whole bunch of feathers linked to the bone attached to the body. Then, each feather was given an orientation constraint controller that was properly weighted so when the forearm bone was rotated, the wing opened and closed like a fan.
Is that the type of rig you're looking to make?