Usutu virus, a mosquito-borne virus which can be fatal to blackbirds, was first detected in the UK in 2020 and has been linked to a decline in the number of blackbirds in the UK Usutu virus, a mosquito-borne virus which can be fatal to blackbirds, was first detected in the UK in 2020 and has been linked to a decline in the number of blackbirds in the UK Lifestyle
Warning for Brits with blackbirds in their garden this winter
