Welcome to the BTO

Looking out for birds? Share your interest in birds with others by being part of the British Trust for Ornithology. Volunteer surveyors, members and staff work in partnership to provide unbiased information about birds and their habitats. Join or volunteer today and make birds count.

Cuckoo by Edmund Fellowes

Cuckoo declines linked to different migration routes

When the BTO began ground-breaking Cuckoo tracking research in 2011, we had very little idea where these birds spent the winter or how they got there. Our latest research, just published in Nature Communications, not only reveals this information, but also shows that Cuckoos’ use of autumn migration routes helps explain population declines.

Bird Photographer of the Year 2016

Bird Photographer of the Year

Published on 20 August, this wonderful book is available for pre-order from BTO. It includes a selection of the most stunning images from the winners and short-listed photographers who took part in the Bird Photographer of the Year award 2016. Get a sneak preview and take advantage of the BTO’s special offer now.

BTO surveys - scheduled maintenance

Due to scheduled maintenance, BTO survey applications will be unavailable for data entry / retrieval from 9am to 5pm on Wedneday 27 July. This will affect all survey interfaces, including BirdTrack, BBS, WeBS and GBW. The BirdTack mobile app will still work, but you won't be able to upload data during this period.

We apologise for any inconvenience and will restore normal service as soon as possible.

Spurn Migration Festival

Spurn Migration Festival

Tickets are now on sale for the fourth annual Spurn Migration Festival. As a partner of the event BTO will be there, come and meet us and take part in the walks and talks, experience a bird ringing demo at this top migration site, and see bird migration in action. Get your ticket for Spurn Migration Festival now.