Become a member
Support our work by becoming a BTO member. You’ll receive great benefits too..
BTO gift membership makes the perfect gift for anyone interested in birds and includes the free membership gift as above.
Our appeals raise funds for key projects.
Changing Times Appeal
We need to explore our masses of data to look for common causes for the changes we are seeing across bird populations.
Garden BirdWatch Appeal
Help us uncover garden secrets and answer some key questions.
House Martin Appeal
Help us solve the mystery of House Martin migration through geolocator-tagging.
Remember Britain’s birds in your will.
Donate to support our work
The BTO's work is dependent on charitable giving. Please make a donation to support our work, and together we can develop our understanding of the ever-changing fortunes of Britain’s birds and make a real difference to their future.
The BTO - Looking out for birds with Business. Find out more about the BTO's new Corporate Membership Scheme and other ways in which we work with business