A world inspired by birds and informed by science.
Making birdwatching countWe empower 60,000 bird-enthusiasts to gather vital data, develop their skills and be part of a vibrant community.
Championing impartial scienceWe answer the most pressing questions about birds, through our thorough and impartial scientific research.
Sharing our bird knowledgeWe communicate our knowledge and expertise to increase the value of birds and other wildlife for all.
Unlocking the secrets of European bats
Discover the groundbreaking work of our bat acoustics specialist, Stuart Newson, as he unveils his cutting-edge research on bat social calls and feeding buzzes.
Future impact of climate change on threatened seabirds
New BTO research predicts seabird declines of up to 90% by 2050 in Britain and Ireland under a ‘business as usual’ climate scenario.
More ways we work
How garden birds survive in the cold and winter
Discover how birds survive in the cold, which thrushes might visit your garden in an icy spell, and how you can help your garden birds when the weather turns frosty.
Guidance information for volunteer fieldworkers
Information about insurance, access rights, safeguarding, health and safety, and our Fieldwork Hazard Checklist.
Scotland’s winter visitors: why and how do they migrate?
From geese and swans to thrushes and warblers, discover the secrets of our winter birds' migration.