The main habitat of the grey squirrel is broadleaved and mixed broadleaved/conifer woodland. It is also found in hedgerows as well as being a common resident in urban areas where there are trees .
The body length is 25cm plus 22cm of tail weighing 500gm. The winter coat is grey above with a white underside, the summer coat is shorter sleeker and brownish grey above.
Red squirrels have red/brown upper parts in summer but may show some grey on the back in winter leading to some confusion. Reds are smaller, lighter, have ear tufts prominent in the winter coat and brown on the legs and tail.
There are two breeding seasons a year, first litters are born in February and March and gestation is 45 days. The young are weaned at 10 weeks. Second litters are born June and July with an average litter of 3-4.