The Grey Squirrel | British Garden Wildlife 

The grey squirrel (Sciurus carolinensis) is a small mammal, originally native to North America. The grey squirrel is now widespread in the U.K. and was released in this country by 19th-century landowners.
 
Grey squirrels are very active during the day. Most of their time is spent foraging for food on the ground and in trees. They are very daring in suburban gardens, and enjoy the hospitality of our bird tables and bird feeders.
 
The grey squirrel feeds on bulbs, tree shoots, buds, acorns, nuts, and roots, but is also known to eat birds' eggs.
 
The grey squirrel stores food in the autumn to provide food, usually nuts and seeds, to eat during the winter.
 
The squirrel nest is called a 'drey,' which is a compact, football-sized, spherical structure made of twigs, bark, grass, and leaves.