Question: what is the difference between red squirrels and grey squirrels?
Answer: Size. An obvious distinguishing factor is size, with grey squirrels generally being much bigger and stockier than reds. ... Red squirrels weigh between 270-360g and with a head and body length of 19-23cm. Grey squirrels typically weigh between 400-720g with a head and body length of 25-30cm.