De Blauwe Kiekendief Circus cyaneus: een plaag of een beschermingsprobleem

An overview is given of the debate on the raptor-grouse issue in the United Kingdom, especially regarding recent research on the impact of raptor predation on grouse numbers. It is pointed out that the alleged cause of declines in grouse numbers, i.e. raptor predation, has distracted attention from the real problem: habitat deterioration by grazing and afforestation.