Identifying Chaffinch and Brambling

Chaffinch is one of our most common and familiar birds, but young birds and females are harder to identify than the stunning males. In winter, Chaffinches are joined by their northern cousins, Brambling. How can you pick them out in the midst of Chaffinches?

Help fund research into Chaffinch decline

The loss of Chaffinches in the UK requires urgent action now. We have developed a programme of research that will help to pinpoint the drivers of this decline. Find out how you can help.

Learn about our Chaffinch Appeal

BTO bird identification videos are supported by Natureguides

Natureguides kindly provide species video clips for our bird identification videos.

Biodiversity loss and the UK’s birds

Biodiversity loss is one of the biggest drivers of bird population declines in the UK. Learn what we’re doing to tackle this threat to nature and how you can support our work.

Case Study

BTO Data Reports

Our reports provide rigorous scientific information to inform Environmental Impact Assessments in the UK.

Event

Bird Sound ID in Summer (2 sessions, Wednesdays 10am)

Bird Sound ID in Summer involves two interactive online sessions of about two hours each, complemented by supported self-study exercises. We place a strong emphasis on providing you with tools and techniques to help you...

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