Urban great tits found to be genetically different from cousins in countryside

The research across Europe compared city bird genes with those of their relatives in the countryside (Grahame Madge/RSPB/PA)

Great tits which live in cities have been found to be genetically different from the same species residing in the countryside.

New research across Europe – led by Lund University in Sweden in collaboration with the University of Glasgow – compared city bird genes with those of their relatives in the countryside.