1- A Duck and a rabbit befriend each other, and they never leave each other's side
2- As winter begins to approach the duck tells the rabbit that soon, he must fly away for winter and the rabbit is extremely upset. He cannot stop thinking about duck's leaving.
3- Duck finally leaves and rabbit is distraught, he tells his parents how he feels and they explain to him, that this is what duck has to do and he'll be back soon.
4- Rabbit finally understands and he is no longer sad about duck's leaving, but he misses him and casually thinks about him in his day to day life
5- Duck finally returns at the end of the long winter, as spring begins, he and rabbit meet back with one another, continuing on the friendship.