This is the eagle I made for the Guardian of the Holy Forest. As it required basically the same amount of work as a full character, I chose to make a separate post for it.
I followed the same procedures: Zbrush for sculpting, Maya and Blender for box modeling (specially with the feather cards), Substance Painter for texturing and Unreal and Marmoset Toolbag for rendering.
I hope you'll enjoy it!