Bird survey assessment for Bayer CropScience, Great Chishill /
Hulme, Mark F.
Siriwardena, G. M.
Bayer CropScience.
British Trust for Ornithology.
Thetford : British Trust for Ornithology,
2010.
Spiral bound.
"A report by the British Trust for Ornithology under contract to the Bayer CropScience. April 2010."
Includes bibliographical references.
Bird surveys
Ecological assessment (Biology)