A study led by the Doñana Biological Station analyzes the patterns of power lines use by Canarian Egyptian vultures. The researchers have fitted 49 individuals with GPS-devices. This accounted for around 20% of the total population size of this endangered species. ? The study concludes that the patterns use of pylons by large body-size avian scavengers depend on individual- and environmental-based drivers, such as the patial distribution of food resources and anthropisation.