Jatayu - From material persepctive, jatayu failed. He lost, tried to keep sita from being taken away, but he was cut to pieces and was losing his life and Sita was taken by Ravana. But Lord Ramacandra did not see whether jatayu was successful or failure by material perspective but he saw the sincerity of devotion and Rama wept and wept to show the world, how much he loved His devotee.
To please the Lord is the only sign of victory, and to displease Him is the greatest failure, even if we win the whole world.
- HH Radhanath Swami