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.

BTO Data Reports

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

Article

Paper call for special HPAI issue

We are putting together a special issue of the BTO journal Bird Study to bring together research documenting the HPAI outbreak and its impacts on wild birds.

Blog

BirdTrack migration blog – early spring

It may still feel like winter but for some species, the increasing temperatures and lengthening days have already kick-started spring migration, with birds starting to arrive and depart across Britain and Ireland.