Abstract
The plenary discussion, open to the floor, was divided into two parts, the first to identify research needs (Anthony Fox, NERI, as facilitator and Rowena Langston, RSPB, as rapporteur), the second dealing with mitigation and guidance (Allan Drewitt, English Nature, as facilitator and Michael Hay, BWEA, as rapporteur). The following points arose from the plenary discussion, and have been grouped by topic, although there is some overlap between these.