... could try to make overlap-pieces (just doing an extension of each piece declining in width into the space of the neighboring one). Also checking the pivot points (origins) and the hierarchy would be interesting too. I speculating now white a leaf-spring - segmented it and parented one peace to another down to the end. Now there are just minor corrections for each based on the wheel Z-axis position (height) - just needs some fine-tuning work too. But a nice outcome there anyway.
I started the project by dividing the eagle in all the pieces to animate. I've parented to the main body and tried to move them. It worked, but the pieces of the wings maintained their original spatial orientation and the animation appeared rough . Then I changed all the origins of the objects by setting them to the point where they would have to rotate. For the body , legs, tail and humanoid was all right but the pieces of the wings now revolved but remained firm in their place. I solved it by setting their origins in the mid-point width ( y coord ) and aligned along the axis of the wing (all with the same x-coordinate ) . In these positions I then added some meches (I used small circles that are invisible to render) to whom I parented the spare wing. All these circles I set the origin in the center of the main body.
In this way the command "rotate " referring to the circles (which are dragged behind the parts to which they are parented ) determines the motion of the wing and the same command "rotate " referring to the pieces of wing determines the tilt.
All object have been deformed by stretching in the longitudinal direction to their movement to hide the effect of " breaking " when they move, but with the wings I did not have the courage ...
My knowledge still a novice 3D modeling and Blender has caused, any attempt to deformation, the introduction of imperfections in the meches and later in the positioning of the texture that has caused me to not overdo it so as not to create more damage. In the wings then I could not make the sharp divisions as I wanted and try to extrude the edges jagged who knows where it would take me.
Not that I got discouraged and I also published my project because I hope that the emotions that this may give way to fly outweigh the discomfort of the effects of the model aesthetically poor.
(I apologize to all of them given the high quality of the models, textures, materials and reflections that we are accustomed to find in the published models in this forum)