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.

Project

Help monitor the UK’s threatened gull species

The Winter Gull Survey collects information about our wintering gull populations, through the coordinated effort of volunteer surveyors across the UK.

Greater Spotted Eagle, by David Tipling / BTO

Publication

Active European warzone impacts raptor migration

Collaborative research involving BTO has examined the effects of the conflict in Ukraine on the migration of the endangered Greater Spotted Eagle.

Project

Track our Cuckoos as they migrate

The Cuckoo Tracking Project has been revealing new discoveries about how Cuckoos migrate, and the challenges they face. Follow and support this ground-breaking project.

Volunteer

From expert ringers to garden enthusiasts, we have a range of projects to suit everyone.

Take Part

Blackcap on a branch with blossom, by Liz Cutting / BTO

Subscribe to our e-newsletter

Get the latest news about our science, training courses, special events and volunteering opportunities.

Gannets on a rock, by Edmund Fellowes / BTO

BTO Consulting

View our range of ecological consulting services for organisations and businesses seeking reliable data.

Consulting

Juliet Vickery signing a partnership agreement, by Tom Stewart / BTO

Partnerships

We have good working partnerships with government, academia, business and the Third Sector.

Partnerships

More about BTO

Article

Safeguarding people from harm and abuse

BTO has responsibilities to keep everyone who comes into contact with our work safe from harm. Read more about our safeguarding policies and find out how to report a concern.