A virus affecting garden birds is spreading to new parts of the UK, researchers are warning.
This form of avian pox causes lesions, often around the eyes and beak.
The virus, affecting great
, is believed to be a new and more severe strain of a disease that has affected other bird species for several decades.
When it was first found in the UK in 2006 it seemed to be confined to south-east England, but has now spread further north and west.
The findings come from a team at the Zoological Society of London (ZSL).
Researchers now want help from the public to help track any further spread of the disease.
http://www.bbc.co.uk/news/science-environment-14380813