Can the historical CBC trend for skylarks Alauda arvensis be 'recovered' using present-day agricultural habitat preferences and changes in agricultural land-use?

Can the historical CBC trend for skylarks Alauda arvensis be 'recovered' using present-day agricultural habitat preferences and changes in agricultural land-use?

Citation

Siriwardena, G.M., Wilson, J.D., Baillie, S.R. & Crick, H.Q.P. 2001. Can the historical CBC trend for skylarks Alauda arvensis be 'recovered' using present-day agricultural habitat preferences and changes in agricultural land-use?. RSPB, Sandy