Changes in farmland practicies, pesticides and fertilisers, river pollution, insect killers, tidy gardens with plastic fake grass, straight lines and B&Q fake plants in pots instead of pollinating flowers in soil, lack of wild areas in gardens and nature, concreting over everything,
Since 1980, one out of every six birds has been lost. That adds up to the loss of 600 million breeding birds over 40 years, according to a 2021 study from the RSPB, BirdLife International and the Czech Society for Ornithology.