The Migration Atlas: movements of the birds of Britain and Ireland
Author(s): Wernham, C.V., Toms, M.P., Marchant, J.H., Clark, J.A., Siriwardena, G.M. & Baillie, S.R. (eds)
Published: January 2002
Publisher: T. & A.D. Poyser
Making the most of BirdTrack data
We have been working to produce useful summaries for bird reports using data from the millions of annual BirdTrack records.