It is due to the fact that Canada was under British monarchy until 1867. (Confederation)
The present Canadian flag was established in 1965.
The leaf on the Canadian flag - is a Maple leaf.
The Canadian flag does not have anything blue.
The first flag was the Flag of France at the time of Jacques Cartier. The first flag after the Canadian Federation was founded was the Canadian Red Ensign.
It is called "Red Ensign". The Ontario's flag is called "Red Ensign".
The present Canadian flag was introduced in 1965.
The Canadian Flag was made on October 22, 1964
There is only 1 leaf on the Canadian Flag which is a maple leaf. It is in the middle of the flag.
The link below points to an image of the flag Or google 'canadian flag' and click images.
The present Canadian flag was designed by Jacques Saint-Cyr.
The rule is that the American flag has to be higher up than the Canadian flag.