Citation
Crick, H., Shawyer, C., Harvey, J., Crockford, N., Bainbridge, I., Stirling-Aird, P., Williams, I., Moore, D. & Taylor, K. 1995. Birds of Prey in the UK: A review and implications for future policies. BTO/HOT/NT/RSPB/SRSG/WRSG/WT