BTO has been at the forefront of bird monitoring and research since we were founded in 1933, and since that time we have accrued a vast body of knowledge. Sharing our understanding of birds is an important part of our work, helping to invigorate and inform our vital volunteer base and inspire the next generation of ornithologists to tackle the conservation challenges of the future.
BTO strives to provide a deeper understanding of birds their behaviour. BirdFacts is a one-stop shop for data on British birds.Read our masterclass articles covering one aspect of ornithology in depth. Let us recommend what to read next in our book reviews.
Search for a bird species on BirdFacts
BirdFacts gives in depth information about all of the bird species recorded in the wild in Britain. For each one, BirdFacts is a one stop shop for details of its abundance, distribution, population trends, demographic factors and biometrics, along with other fascinating facts and trivia.
Our masterclasses provide informative and authoritative takes on different areas of bird behaviour and biology from BTO staff and guest experts.
Let us help you pick your next bird book, with informative reviews of the latest ornithological literature by BTO staff and volunteers.
Migration blog – Winter
As we get ever closer to the end of autumn the pace of migration steadily slows, and as the daylight hours shorten so does the variety of birds on the move.