https://www.bto.org/our-work/science/publications/reports/research-reports/ranging-behaviour-some-granivorous-passerines-winter
The ranging behaviour of some granivorous passerines in winter on farmland: Report for the second season Winter 2003/04
The ranging behaviour of some granivorous passerines in winter on farmland: Report for the second season Winter 2003/04
Citation
Calladine, J., Wernham, C. & Robertson, D. 2004. The ranging behaviour of some granivorous passerines in winter on farmland: Report for the second season Winter 2003/04.
