What have we lost?
Around half of farmland birds have been lost in England since 1970.
Of 25 species of bumblebees, vital for pollination of crops, three have recently become extinct and others face extinction.
97% of wildflower meadows have been lost since the 1930s.
Over half of ancient woodlands have been removed since 1945.
Of about 500,000 miles of hedgerow existing in England and Wales in 1946-47, about half have disappeared.
70,000 farmers and workers have left farming between 1996 and 2004.