Yahoo2 个月
Red squirrel group sees 'invasion' of greys
Grey squirrels, native to North America, carry a pox which is deadly to red squirrels [PA] There are 47 groups across Northumberland and Cumbria all working to protect red squirrels. "Frankly ...
BBC1 个月
Greys invade England's red squirrel strongholds
It carries - but is not affected by - a pox which causes red squirrels to die slowly and painfully. PA Media Grey squirrels carry a pox which kills reds but leaves them unharmed A total of 246 ...