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.
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.