Often these processes seem to us more related to distant countries or rare birds.
This far from the reality.
To ours around a so common and familiar species as the Barn Swallow is disappearing quickly
The repair of the old houses in the villages makes to the Swallows finding difficult to breeding places.
The changes and uses in the agricultural systems cause that the means become more unhealthy for the insectivorous species.
graph with the decrease in nine years, by SEO/BirdLife