Welcome to the British Trust for Ornithology | BTO

A world inspired by birds and informed by science.

Making birdwatching count

We empower 60,000 bird-enthusiasts to gather vital data, develop their skills and be part of a vibrant community.

Championing impartial science

We answer the most pressing questions about birds, through our thorough and impartial scientific research.

Sharing our bird knowledge

We communicate our knowledge and expertise to increase the value of birds and other wildlife for all.

Chaffinch and Greenfinch. Edmund Fellowes

Case Study

What we can learn from 25 years of watching gardens

Exploring the value of a complete quarter-century of weekly garden bird observations from BTO's Garden BirdWatch covering the length and breadth of the country.

Publication

Assessing the effects of wind farms on wildlife

New research involving BTO has developed a framework to identify how wildlife might be affected by renewable energy developments.

Article

Birds and pollution — a masterclass

Increasing human activity brings more pollution into the environment. This can take many forms and can affect birds in a number of ways, as Nina O'Hanlon explains.

Find a project

Use our project finder to find the project that matches your level of bird expertise and the time you have available.

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Nesting Neighbours

Do you think you might have birds nesting in your garden? Could you take a closer look and find out? By monitoring nests through the breeding season you could gather hugely valuable information.

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