The goal of the EU policies was to boost farm growth so that the region was less reliant on outside food sources but the end result has been a bird population that has been cut in half since 1980. The Guardian:
Indeed, according to a new survey, the chances of encountering any one of the 36 species of farmland birds in Europe – species that also include the lapwing, the skylark and the meadow pipit – are now stunningly low. Devastating declines in their numbers have seen overall populations drop from 600 million to 300 million between 1980 and 2009, the study has discovered.
This dramatic decline represents a 50% reduction and is blamed on major changes in farming policies enforced by the EU over the last 30 years.
In order to boost food production across Europe, the wholesale ripping up of hedgerows, draining of wetlands and ploughing over of meadows has robbed farmland birds of their homes and food. Numbers of linnets, turtle doves and lapwings have crashed as a result.