Whereas populations of eagle-owl in many parts of Europe slightly increase, they stagnate or slightly reduce in Switzerland. The situation is especially critical in Valais, where only approximately ten breeding pairs are living. In the last twenty years this population has barely changed. According to a new study only ten percent of eagle-owls in Valais survive the first year of their lives. One fourth dies of electric shock when trying to sit on obsolete powerline poles, which do not correspond to current security standards.
