Explore the maps and graphs

The wealth of data that your BirdTrack records provide gives us various insights into bird distributions and movements throughout Britain and Ireland. The graphs can be found on the ‘Explore data’ page on BirdTrack.
The reporting rate graph displays the percentage that birds are recorded on complete lists submitted to BirdTrack. The higher the reporting rate the more frequently it is recorded. It can also be used as a rough measure on how detectable a species is, with a low reporting rate indicating it is much trickier to see. The graph can be customised to country, subregion and years. You can compare multiple years by using the 'Add plot' function.
The peak count by week graph allows you to see the highest individual count of a species submitted for a particular week in BirdTrack. This graph can be customised by country, subregion, species and year, and it is possible to compare multiple years and species using the 'Add plot' function
The Recent sightings map is only viewable if you are signed in to BirdTrack. Here you can view sightings logged on BirdTrack in the last 3, 7 or 14 days. This excludes which are covered by the rare and sensitive species policy whose sightings are hidden on public outputs. The sightings can be searched by clicking on the cog wheel icon in the top right hand corner.

Using BirdTrack outputs and data

The information presented in the maps and graphs is liable to change, as observers can amend their records at any time. In addition, although we believe all data are entered by observers in good faith, County Bird Recorders, Bird Club records committees and the BirdTrack Organiser do check and validate the records on a continual basis, and correct any errors that are identified. This process takes time and may cause subsequent changes to the information displayed in the maps and graphs on a particular day.


All the maps and graphs pages are subject to copyright so please email copyright [at] bto.org to request permission if you wish to reproduce any of the graphs, maps or tables.

We encourage the use of BirdTrack raw data for research, conservation and educational purposes and will often be able to supply more detailed and complete information than is available on the website on request.

Data obtained directly from this website may not be used for commercial, research or any other funded work without formal written permission from the BTO.

Important note about auto-ID tools

We recognise the growing popularity of auto-ID tools that use audio or image inputs to provide species identification, but we currently ask volunteers not to solely rely on these tools when submitting data to us.

Useful links

Citing BirdTrack

Information from the BirdTrack website should be cited as follows:

  • BTO/RSPB/BirdWatch Ireland/SOC/WOS 20xx. BirdTrack. Available at: www.birdtrack.net (accessed Month 20xx).

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