A mosquito-borne virus has been found in blackbirds in Scotland, prompting calls for urgent action from those with blackbirds in their gardens. The discovery of the virus, identified as Usutu virus, has raised concerns, although it is unclear how widespread the issue is, with some reports suggesting a significant impact on blackbird numbers in London. The situation has also drawn comparisons to other mosquito-borne viruses, including West Nile virus, which has been detected in UK mosquitoes for the first time.