
13/04/2025
⚠️ Blackbirds are in trouble & we need your help! Threatened by the Usutu virus, we need you to submit your garden Blackbird sightings so scientists can better understand the virus’ spread & potential impacts on these songbirds. Sign up ➡️ www.bto.org/blackbirds
So what’s happening to our Blackbirds? 🤔
A decline in Blackbirds was noticed in gardens, especially in the Greater London area since 2020. This population fall was linked to the recent appearance of the mosquito-borne Usutu virus in England.
How can a survey help? 📝
Launched in 2024, this pioneering survey aims to map the rate of decline in Blackbirds. Results so far show Blackbirds are struggling most in London, but faring better in northern England, Scotland and Wales.
We need more records this year, especially from in and around towns and cities, to help BTO scientists better understand the spread of Usutu virus and what the potential impacts might be on the UK’s Blackbirds.
Have a garden? Sign up to help on our website ➡️ www.bto.org/blackbirds Thank you!
This BTO survey is part of a wider partnership project involving the Animal and Plant Health Agency (APHA), the Zoological Society of London (ZSL) and the UK Health Security Agency (UKHSA). The project, Vector-Borne RADAR, is funded by UK Research and Innovation and Department for Environment, Food and Rural Affairs (Defra) to understand the emergence and transmission of mosquito-borne viruses of wild birds in the UK.