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Changes in the abundance of farmland birds in relation to the timing of agricultural intensification in England and Wales |
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| Authors: | DE Chamberlain‡ RJ Fuller‡ RGH Bunce§ JC Duckworth†§ M Shrubb¶ |
| Institution: | British Trust for Ornithology, The Nunnery, Thetford, Norfolk IP24 2 PU, UK;;Institute of Terrestrial Ecology, Merlewood Research Station, Grange over Sands, Cumbria LA11 6JU, UK;and;Hillcrest, Llanwrtyd Wells, Powys LD5 4TL, UK |
| Abstract: | |
| Keywords: | Common Birds Census DCA farm management PCA population declines |