Study Shows Birds Improve Mental Health

New research from King’s College London has found that seeing or hearing birds is associated with an improvement in mental wellbeing that can last up to eight hours.

This improvement was also evident in people who were diagnosed with depression — the most common mental illness worldwide — indicating the potential role of birdlife in helping those with mental health conditions.

Published in Scientific Reports, the study used a smartphone app called Urban Mind to collect people’s real-time reports of mental wellbeing alongside their reports of seeing or hearing birdsong.

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“There is growing evidence on the mental health benefits of being around nature, and we intuitively think that the presence of birdsong and birds would help lift our mood,” says lead author Ryan Hammoud, from the Institute of Psychiatry, Psychology & Neuroscience (IoPPN) of King’s College London. “However, there is little research that has actually investigated the impact of birds on mental health in real-time and in a real environment. By using the Urban Mind app, we have for the first time showed the direct link between seeing or hearing birds and positive mood. We hope this evidence can demonstrate the importance of protecting and providing environments to encourage birds, not only for biodiversity but for our mental health.”

The study took place between April 2018 and October 2021, with 1,292 participants completing 26,856 assessments using the Urban Mind app, developed by King’s College London, landscape architects J&L Gibbons, and arts foundation Nomad Projects.

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Participants were recruited worldwide; the majority were from the United Kingdom, the European Union, and the United States.

Sensual stimulation of birdsong

The app asked participants three times a day whether they could see or hear birds, followed by questions on mental wellbeing to enable researchers to establish an association between the two and to estimate how long this association lasted.

The study also collected information on existing diagnoses of mental health conditions and found hearing or seeing birdlife was associated with improvements in mental wellbeing in both healthy people and those with depression. Researchers showed that the links between birds and mental wellbeing were not explained by co-occurring environmental factors such the presence of trees, plants, or waterways.

“The term ecosystem services is often used to describe the benefits of certain aspects of the natural environment on our physical and mental health,” says senior author, Andrea Mechelli, a professor of early intervention in mental health at IoPPN. “However, it can be difficult to prove these benefits scientifically. Our study provides an evidence base for creating and supporting biodiverse spaces that harbor birdlife, since this is strongly linked with our mental health. In addition, the findings support the implementation of measures to increase opportunities for people to come across birdlife, particularly for those living with mental health conditions such as depression.”

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Co-author of the study Johanna Gibbons added: “Who hasn’t tuned into the melodic complexities of the dawn chorus early on a spring morning? A multi-sensory experience that seems to enrich everyday life, whatever our mood or whereabouts. This exciting research underpins just how much the sight and sound of birdsong lifts the spirits. It captures intriguing evidence that a biodiverse environment is restorative in terms of mental wellbeing. That the sensual stimulation of birdsong, part of those daily ‘doses’ of nature, is precious and time-lasting.”


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