Gromril said:For me? The whole "Lulz why didn't the eagles just fly them to the mountain?" from the hobbit. Of the top of my head? How about smaug (you know, the freaking Dragon that lives there) being one of the few things in universe that would pass for a natural predator for a giant eagle. Cant imagine they want to go anywhere near that thing.
Also, maybe, just maybe, giant birds have different motivations and thought processes to bipedal mammal folk. I don't know Gandalf's relationship with them, beyond his ability to call in a favour from them occasionally if there is no other way for him to accomplish something (Not being dead, saving lives ect)
if you read the silmarillion it will explain who the eagles are and what their deal is
but they pretty much don't care what happens in middle earth as they live in Valinor.... where all the elves are heading to in LOTR