Bird surveys at windfarms in the Eastern Cape, South Africa

Bird surveys were conducted at four windfarm sites and four control sites in the Eastern Cape, South Africa. Numbers of the Blue Crane Grus paradisea decreased at three out of four windfarm sites after commencement of windfarm activities and did not decrease at any of the control sites. Numbers for several bird species of the fynbos and grassland tended to increase at windfarm sites after commencement of windfarm activities, and did not increase at the control sites.