Big Garden Birdwatch, the UK’s largest garden wildlife survey, is a yearly citizen science project run by the Royal Society for the Protection of Birds (RSPB). It invites people of all ages to spend an hour observing and counting the birds that visit their gardens, balconies, or local parks. This collective effort provides valuable data that helps track bird populations and inform conservation efforts.
The Origins of Big Garden Birdwatch
Big Garden Birdwatch began in 1979 as a winter activity specifically designed for junior members of the RSPB. It was initially a one-off event, but its unexpected popularity, fuelled in part by coverage on the children’s television program Blue Peter, led to over 34,000 forms being returned. Recognizing the potential of this citizen science project, the RSPB decided to repeat the survey annually.
In 2001, the Big Garden Birdwatch was opened up to adult participants, further broadening its reach and impact. Over the years, the event has grown significantly, with over half a million people regularly taking part. This widespread participation has created a rich dataset, spanning over 45 years, that allows researchers to analyze long-term trends in bird populations and understand the challenges facing various species. Learn more abou
Big Garden Birdwatch Today
The Big Garden Birdwatch typically takes place over a weekend in late January. In 2024, the dates are the 24th-26th of January. Find out when the BGBW is going to happen next. Participants are asked to choose an hour during this period to observe and identify the birds in their chosen location. They record the highest number of each bird species seen at any one time, rather than the total number of birds spotted throughout the hour. This method helps avoid counting the same birds multiple times. You can read our How to Count Birds in Big Garden Birdwatch article.
After completing their observations, participants submit their results to the RSPB. This can be done online, through the post or by phone. The collected data is then analysed by RSPB scientists to monitor bird populations, identify species at risk, and inform conservation strategies.
The Impact of Big Garden Birdwatch
The Big Garden Birdwatch has played a crucial role in raising awareness about the decline of certain bird species. For example, the survey was one of the first to highlight the dramatic drop in song thrush numbers, which have declined by over 80% since 1979. It has also tracked the decline of other species, such as greenfinches and house sparrows, while noting increases in others like woodpigeons and collared doves.
The data gathered through Big Garden Birdwatch not only helps conservationists identify struggling species but also provides insights into the potential causes of their decline.[2] This information contributes to targeted conservation efforts aimed at protecting these birds and their habitats. Learn more about the ground-breaking science behind the event.
By participating in the Big Garden Birdwatch, individuals can contribute to valuable scientific research, learn more about their local birdlife, and connect with nature. It’s a simple yet powerful way to make a difference for birds and the environment.
Learn how and when the event started and why the BGBW is in January.
