Rigging 3D Birds for Unreal Engine mobile game

For a mobile game in unreal Engine: We need to create some rigs for 3D model birds. Our birds will have theirs wings closed for the most of the time but they must be able to be animated for minimum movements (like scratch under wing). The Birds won't fly. All Controls will be FK. Only neck (for long neck like Heron) and legs will have switch IK/FK Controls. For more informations contact us.