Few other rodents have been designedly naturalized, but the North American grey squirrel (Sciurus cinereus) appears to be established as a wild animal in Woburn Park, Bedfordshire, England, and may probably spread thence.
==Rodentia== A squirrel (Sciurus Syriacus?); Mus Indicus and M.
Next comes the typical Sciurus, including the great bulk of the entire group, and ranging over Europe, Asia, North Africa and America.
Ecureuil), properly the name of the wellknown red, bushy-tailed British arboreal mammal, Sciurus vulgaris, typifying the genus Sciurus and the family Sciuridae, but in a wider sense embracing all the rodents included in this and a few nearly allied genera.
The squirrels of the typical genus Sciurus are unknown in Africa south of the Sahara, but otherwise have a distribution co-extensive with the rest of the family.