As suggested in another thread, why didn't
Gandalf have the
eagles carry
Frodo to Mt. Doom and just drop
the ring in?
For me this inquiry has always been fairly obvious and I will provide a quote from The
Hobbit which also gives a legitimate reason why the eagles would not do it. The eagles are not invincible and they are also quite visible. Going into
Mordor and dropping Frodo off would hardly go unnoticed. Then there is the issue of the guards. The eagles can and likely will be attacked either with
arrows or spears, or some other projectile. There are even flying mounts that the Ring Wraiths have. The Lord of the Eagles told
Thorin and Company why he’d not have their group taken anywhere near where
men abided: “‘They would shoot at us with their great
bows of yew,’ he said, ‘for they would think we were after their sheep. And at other times they would be right... but we will not risk ourselves for
dwarves in the southward
plains.’” (The Hobbit, Out of The Frying-Pan Into the Fire) The eagles would not “risk” themselves because they would be harmed, and not even from inhabitants of a heavily fortified place. So the eagles would be visible and could be harmed, or killed if they attempted to bring the Ring to Mount Doom.