In Catalonia, one of the more threatened species is the osprey. The osprey is a species next to the vulture, which feeds, in a basic way, on bones. They live in zones of mountain and they nidify on the walls
The modifications of the habitat due to the construction of big public works and touristic infrastructures, the direct persecution (poaching, illegal use of poison, spoliation of nests, etc), the indirect troubles (raids of hunting, photograph and determinate sport activities: climbing, paragliding, hiking, etc) and the collision and electrocution with electrical lines are some of the causes that prejudice its growth and survival.