Discover a wealth of information on the UK's birds by exploring our data, and reading our articles and blog posts. From discovering the latest information on the birds on your doorstep, to explanations of bird behaviour and how they live their lives.
Explore our data
BTO collects, analyses, reports on and offers a wide range of data including facts and figures on British birds (including bats and butterflies), trends in numbers and breeding performance over 50 years and which birds can be found near you.
By species
BirdFacts Species gives in-depth information about all of the bird species recorded in the wild in Britain.
By postcode
Enter your postcode and Birds on your Doorstep shows you the changing fortunes of the birds in your area.
By country
Explore how a particular species is faring. View trends for different countries, and download data and graphs.
All about birds
Explore pages that explain bird behaviour and more about their lives, learn about the British List and bird taxonomy, and discover the UK's bird families.
Bird behaviour
Learn about bird courtship, incubation, feeding behaviour, how they keep warm in winter, and much more.
Taxonomy & The British List
View the British List and learn about the taxonomy behind the UK's bird species.
Learn about owls
Learn how to identify owls, discover their ecology and fascinating behaviour, and learn how to build next boxes for them.
Masterclass articles
Learn something new today by browsing our bitesize masterclass articles on bird behaviour and biology and the impact of climate change and biodiversity loss on birds and nature.
Gulls allowed?
Our experts unpick the facts behind the headlines about gulls and why there's no such thing as a 'single' seagull.
A Blue Tit diary
A day in the life of an average Blue Tit during the breeding season, from February to July and the rest of the year.
Birds and pollution
From plastic, pesticides and oil, to urban light and sound – how do the many types of pollution affect the birds we all love?
Birds on the BTO Blog
The BTO blog offers specialist insight and unique perspective from a wide range of BTO staff, volunteers and guest writers on various aspects of our work from surveys and strategy to bird migration, Youth initiatives and the importance of inclusivity.
Our Cuckoo tracking journey
BTO’s Chris Hewson reflects on what it’s like to tag Cuckoos, what’s new for the project this year, and why it’s vital that the project continues.
The bird breeding season
From Great Crested Grebes to Goldcrests, Dunnocks to Lapwings and Cuckoos, the breeding season is full of amazing nesters. Discover them today.
Foraging "fingerprints"
Understanding an individual bird’s behaviour helps us predict how species may be affected by change. But how do we research a bird’s "personality"?
