Investigation of methods for producing joint CBC-BBS trends
Author(s): Noble, D.G., Newson, S.E. & Joys, A.C.
Published: January 2004 Issue No.: 377 Pages: 70pp
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What we can learn from 25 years of watching gardens
Exploring the value of a complete quarter-century of weekly garden bird observations from BTO's Garden BirdWatch covering the length and breadth of the country.