Gray squirrels are eaten by a large number of organisms including black snakes, rattlesnakes, weasels, skunks, and red foxes. If you find pine cones nibbled to the core its a sure sign that squirrels are about. Love-struck squirrels are damaging ancient woodland by ripping bark off the trees to impress their mates. In late winter, squirrels may be seen courting, one, or more, chattering males chasing a female through the tree or across the ground. Grey squirrels in the garden? Mammals; Statistics Length: 24-28.5cm Tail: 19.5-24cm A red squirrel seen in the garden of a guesthouse in Bainbridge may have been the result of a 'bumper' breeding season caused by an abundance of pine cones. The grey squirrel was introduced into the UK in the 1800s. The mother suckles the naked, blind young every three or four hours for several weeks. In fact grey squirrels are more often half grey and half brown. At that time very few people were aware of the damage that this might cause to native wildlife. Its range there stretches from Quebec down through New Jersey and Pennsylvania. The female red squirrel may produce two litters in a good year, one in the spring (April) and the other in summer (August). Young squirrels are born blind and hairless, in litters of 3-4, after a gestation of 44 days. The mating season often starts on warm days in January, the squirrels chasing each other through the branches. There is also a number of black Grey Squirrels which are mainly concentrated around Bedfordshire and Cambridgeshire. During the autumn months you might see squirrels burying acorns and nuts. They are smaller than gray squirrels, about 9-10 inches long, with reddish-brown fur and a white underbelly.