Often the only clues that illegal behaviours may be occurring are a sustained failure of successful breeding by species such as Golden Eagle, Hen Harrier, Peregrine, or Red Kite in areas with suitable nesting habitats, ample available food, and an absence of nest predators due to systematic legal predator control; the repeated turnover at traditional nest sites of adult birds that ordinarily should have a high year-to-year survival rate; or, the sudden, disappearance of satellite-tagged raptors, as confirmed by the NatureScot Commissioned Report...