Identifying Common & Herring Gull
Love them or hate them, you can't (or shouldn't) ignore gulls. Build up your gull ID skills by learning to recognise two ideal reference species from this versatile and varied family: Common Gull and Herring Gull.
BTO bird identification videos are supported by Natureguides
Natureguides kindly provide species video clips for our bird identification videos.
BTO Acoustic Pipeline
An accurate species identification and data management tool for acoustic monitoring in conservation, management and site assessment.
BTO Data Reports
Our reports provide rigorous scientific information to inform Environmental Impact Assessments in the UK.