https://www.bto.org/our-work/science/publications/reports/research-reports/00139-evaluation-sampling-strategies-for-bbs
Evaluation of sampling strategies for 1-km squares for inclusion in the Breeding Bird Survey
Evaluation of sampling strategies for 1-km squares for inclusion in the Breeding Bird Survey
Citation
Gregory, R.D. & Baillie, S.R. 1994. Evaluation of sampling strategies for 1-km squares for inclusion in the Breeding Bird Survey.
