Grey Squirrel better than the Red Squirrel

Grey Squirrel better than the Red Squirrel at problem solving skills and reason better at searching for food could be why out numbered them in Britain.Exeter university did a test involving Grey and Red Squirrel in which there had to pull a lever to get a reward of nuts .The Grey Squirrel had a score of 9 out of 10,Red Squirrel 6 out of 10 .So this is showing that the Grey Squirrel is better at looking for food .