Keyframing wings should be simple.

First key in the KEY frames, then the breakdowns and inbetweens. Search for a video of the bird your animating and view it frame by frame, or look for images that show this breakdown. (There is a book that has frame by frame images of various actions inc. wings, but i cant think of it atm)

Set Driven Keys (SDK) should also work, and i belive theres a free tutorial SM on this which should give you some light.