Final answer:
The red hunting cap represents uniqueness and protection, the natural history museum symbolizes stability and a connection to the past, and the central park ducks represent longing for change and a sense of belonging.
Step-by-step explanation:
The red hunting cap, the natural history museum, and the central park ducks in J.D. Salinger's novel 'The Catcher in the Rye' all hold symbolic significance.
The red hunting cap represents Holden's desire for uniqueness and individuality, as he wears it backwards as a way to stand out from the crowd. It also acts as a shield, protecting him from the outside world and its judgments.
The natural history museum symbolizes Holden's desire for stability and a connection to the past. He finds comfort in the museum's frozen and unchanging displays, as they represent a simpler and more innocent time.
The central park ducks represent Holden's longing for change and a sense of belonging. He is fascinated by their ability to adapt and survive in a constantly changing environment, just like he himself is trying to do.