lets think about this. the eagle's are gandalfs friends, but they aren't his servents. Gandalf: hey eagles, wanna go fly into mordor over mount doom? Eagles: hell no! that's suicide! they coulden't just fly a bunch of eagles over. they would have had to deal with the full strength of mordor at the time. they would be attacked by Nazgul, shot at and Saruman would be throwing fireballs at them. deffinatly not a good plan. What i really wanna know. is when isildur dosen't deystroy the ring. why dosen't Elrond just shoot him and do it himself? would have been a short story then.