Populations of the hazel dormouse, perhaps the most elusive native British mammal, have plummeted by 70% this century.
The nocturnal, tree-dwelling animals are now extinct in 20 counties in England and the species must be reclassified as “endangered” on the International Union for Conservation of Nature red list, according to a study by the People’s Trust for Endangered Species (PTES).
Since the previous State of Britain’s Dormice report was published in 2019, they have vanished from Hertfordshire, Staffordshire and Northumberland.
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