@techreport{Walls-2009-4990, author = {Walls, R and Pendlebury, C and Budgey, R and Brookes, K and Thompson, P}, title = {Revised Best Practice Guidance for the Use of Remote Techniques for Ornithological Monitoring at Offshore Windfarms}, institution = {RPS group}, year = {2009}, month = {jun}, number = {COWRIE REMTECH-08-08}, keywords = {Wind Energy, Fixed Offshore Wind, Birds}, }