What childhood hobby fascinated James Watson?

The childhood hobby that fascinated James Watson was bird watching.

Watson grew up in Chicago and shared his interest in birds with his father. The hobby became important enough that he considered majoring in ornithology, the scientific study of birds. His early attention to living species helped nurture the biological curiosity that later shaped his career.

His direction changed after he read Erwin Schrödinger’s 1944 book What Is Life? The book encouraged Watson to focus on genetics and the physical basis of heredity rather than pursue ornithology. He enrolled at the University of Chicago and earned a zoology degree in 1947.

Bird watching is easy to confuse with stamp collecting or another familiar childhood pastime, but the biographical detail is specifically tied to Watson’s early scientific ambitions. His later work with Francis Crick shifted from observing organisms to explaining the molecular information carried by DNA, culminating in their 1953 double-helix model.