Holden and the Ducks

I feel that Holden is concerned about the ducks during the winter because he feels like he is in a similar situation. He feels that he is being forced into a new world before he has finished his time in the current one. He wants to spend more time in the world he is in right now (the world of childhood) before it ends and he has to enter the world of adulthood. This is like how the ducks want to spend more time at the pond before it freezes over in the winter and they are forced to go somewhere else. Holden feels that he is not ready to enter a new world so he is worried about the ducks in the park because they are facing the same dilema that he is facing.