en Red squirrel
Sciurus vulgaris is a species of tree squirrel in the genus Sciurus common throughout Eurasia. Red squirrels occupy boreal, coniferous woods in northern Europe and Siberia, preferring Scots pine, Norway spruce and Siberian pine. In western and southern Europe they are found in broad-leaved woods where the mixture of tree and shrub species provides a better year round source of food.
In Great Britain, Italy and Ireland, numbers have decreased drastically in recent years. This decline is associated with the introduction by humans of the eastern grey squirrel (Sciurus carolinensis) from North America and habitat loss. (source: Wikipedia)