Biodiversity Action Plan
References
- Batty, A., Langston R.H.W. and Gregory, R.D. (1999).
South Pennines Twite Survey 1999 – RSPB / English Nature. - Brown, A.F. and Shepherd K. (1991).
Breeding Birds of the Pennine Moors: JNCC Report No 7. - Selman, R., Dodd, F. and Bayes, K. (1999).
A Biodiversity Audit of Yorkshire and the Humber. Yorkshire and Humber Biodiversity Forum. - SCARABBS (1999).
National Survey of Twite RSPB / Joint Nature Conservation Council / English Nature. - UK Steering Biodiversity Group (1994).
Biodiversity: The UK Action Plan. HMSO, London. - UK Steering Biodiversity Group (1995).
Biodiversity The UK Steering Group Report. HMSO, London.
