This important recommendation is excerpted from the report:

It is recommended that intensive activity surveys should be undertaken within a 1 km radius of each proposed wind turbine throughout the survey period and that seasonal use of roosts be determined within a 10 km radius.

To provide an indication of migration routes, an intensive survey of a 1 km radius around the proposed wind turbine site to identify an increase in migratory species should be undertaken in spring and late summer / early autumn.

Wind turbines should not, as a rule, be installed inside nor within a distance of 200 m of woodlands due to the risk that this type of siting implies for all bats. In the vicinity of woods the height issue should be highlighted. Special attention should be given to the bat activity above the canopy. Imaging cameras and kites/balloons with bat detectors will give an indication of height. Radar, if it proves to be operational, may be less useful here than in less cluttered habitats. The focus should be on high flying species as well as on all the species that forage above the canopy e.g. Nyctalus sp.,Vespertilio murinus, Eptesicus sp., Myotis bechsteinii, Myotis nattereri, Myotis myotis, Pipistrellus sp., Hypsugo savii and Barbastella barbastellus.