Actually, “Rings of Power” is authorized by the Tolkien estate/family. But the license is limited, mostly to the appendices to LOTR. Amazon generally can’t use ideas first seen in the Silmarillion or later published books (although the estate allows some use of things implied in LOTR but not made explicit until later.
This sequence makes no sense, all right. Bribery’s ring didn’t create a shield around its wearer. It turned the electric force back on the person trying to use it. Ro-zan should have been leveled and the wall untouched.
Turkeys can fly. But domestic turkeys have been bred (and fed) for obesity to the point that their wings typically lack the strength to get and stay airborne. I live in an area where occasionally wild turkeys (descendants of escapees from a decades-gone poultry farm) still show up, and despite their breeding can manage to fly several yards, a foot or two off the ground.
And so, our story reaches its dramatic conclusion!