Welcome to BirdFacts

BirdFacts provides key information about the UK’s birds and their changing fortunes, based on data collected by BTO and partner organisations.

BirdFacts covers all species that have been recorded in the wild in the UK, plus many non-native species that have become established here.

BTO and partner organisations monitor the populations of many of these species through core surveys. For these species, BirdFacts provides robust and up-to-date information on status, distribution, biology and trends, all thanks to data collected by volunteers.

BirdFacts contains three core elements:

Species pages

Facts, figures and maps for each UK bird. Much of this information is generated through BTO and partnership schemes.

Search for a bird

Trends Explorer

An interactive tool for exploring how a particular species is faring. View trends for different countries, and download data and graphs.

Go to Trends Explorer

BirdTrends Report

An annual synthesis of the latest changes in our breeding bird populations, together with interpretative material from the literature.

View the BirdTrends Report

Search for a bird by name

Or browse an alphabetical list of regularly occuring UK bird species.

  • For a more in-depth description of what BirdFacts covers and an explanation of the information provided, see our About BirdFacts page.
  • BirdFacts has been developed with the kind support of the Esmée Fairbairn Foundation.

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