On the flag, red and blue were used as base colors for the country’s flag. The trees were present to represent the forest preserves as well as how well our county treats nature so well. The bird shown perched on the building represents a bald eagle also shown on the Illinois state flag. The idea behind the stars was to show the cities that are in the county. There is a Chicago skyline as well as a skyline from houses the suburbs to show the diversity of living styles citizens in cook county have.