A greedy wolf gets a fish bone stuck in his throat. Seeing the long beak of the heron, he asks for help. The heron is reluctant, but agrees to help on being promised a reward. Having safely removed the bone, the heron requests its reward, but the wolf states that not having it's head bitten off is reward enough.
...Not exactly how the story is written but close enough.
...Not exactly how the story is written but close enough.