A Canadian study published in JNeurosci, the Journal of Neuroscience, has found that bird-watching may enhance cognitive function as people age. Researchers explored bird identification in expert watchers and assessed changes in brain structure, brain activity, and identification performance to understand how accumulated expertise shapes the brain.
The study compared 58 adults, including 29 expert bird-watchers from the Toronto Ornithological Club and the Ontario Field Ornithologists (ages 24 to 75) with 29 novices of similar ages and educational backgrounds (ages 22 to 79). Expert bird-watchers typically classify hundreds of unique species by examining sensory input and using attentional and mnemonic processes oriented toward flexible categorization.
Brain Structure Changes
Regions involved in attention and perception showed structural modification in experts. The same regions were selectively engaged to support bird identification in challenging circumstances. The results showed that expert bird-watchers had structural brain differences compared with novices, regardless of age. Experts also had better recognition and task performance skills. These findings underscore the interconnected nature of structural and functional neuroplasticity arising from extensive training in a domain that demands high-level object recognition, working memory, and visuospatial attention.
While bird-watching does not definitively halt cognitive decline, the study shows that bird-watching and similar hobbies may boost overall brain health. Researchers discovered that knowledge acquisition might help mitigate age-related decline, suggesting that engaging in activities that require expertise development could provide cognitive benefits throughout adulthood.
This article is an AI-assisted summary. All facts and figures are drawn from the original report: https://www.usatoday.com/story/news/nation/2026/02/24/bird-watching-improve-brain-health-research/88844038007/