An approach to the assessment of change in the numbers of Canada Geese Branta canadensis and Greylag Geese Anser anser in southern Britain
Author(s): Rehfisch, M.M, Austin, G.E., Holloway, S.J., Allan, J.R. & O'Connell, M.
Published: January 2002
Journal: Bird Study Volume: 49
Digital Identifier No. (DOI): 10.1080/00063650209461244
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.