Blackbird populations are dropping, especially in London where the total fell 50 per cent in 2020, said the British Trust for Ornithology (BTO), because of the spread of Usutu virus.
Scientists find parasite that has killed 67% of our greenfinches walesonline.co.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from walesonline.co.uk Daily Mail and Mail on Sunday newspapers.