Garden BirdWatch (GBW)

Garden BirdWatch monitors the changing fortunes of birds and other garden wildlife through its network of 'citizen scientists'. Observations collected by BTO Garden BirdWatchers are analysed by BTO researchers and published in leading journals. BTO Garden BirdWatchers have charted the decline of the House Sparrow, the rise of the Woodpigeon, have discovered that urban birds get up later than their rural counterparts and have alerted conservationists to the impact of an emerging disease in Greenfinches. Find out more about Garden BirdWatch.

Latest GBW News

Tawny Owl by Howard Stockdale/BTO

Heard an owl?

Are there Tawny Owls calling in your area? By listening out for them in your garden or nearby green space you could help us to understand their calling behaviour and distribution, and to discover the impact of urbanisation and artificial lighting. 

It's easy to take part - just listen for 20 minutes during at least one evening between now and 31 March 2019. You can listen from your garden, local park or woodland. You can even listen whilst lying in bed with the window open! All information is valuable, even zero counts.

Find out how you can take part in the Tawny Owl Calling Survey

Bullfinch by Edwyn Anderton

Are you seeing Bullfinches in your garden?

Records from approximately 11,000 BTO Garden BirdWatchers indicate that Bullfinches are being seen in more gardens than ever this year! Bullfinches were seen by 19% of Garden BirdWatchers in April 2018, which is almost double the average (1995-2017) for this month. These figures follow on from a record high last winter, after a successful breeding season. Our Annual Results for 2017 show a 16% increase in the percentage of gardens reporting them compared to 2016. See the full Garden BirdWatch Annual Results.

Greenfinch by Jill Pakenham

Feed the birds? Scientists highlight risks of disease at garden bird feeders

A collaborative 25-year ZSL / BTO study stresses the importance of feeding while investigating evolving threats to wild birds. Read more to find out why wild birds are at risk of a number of serious diseases at our garden bird feeders.