Why are the Canada geese important to Canada?

The Canada goose is not considered "important" in Canada. In fact, we consider it to be a pest in most of the country. Canada Geese were considered important because at one point they almost became extinct. This possibility of extinction lead to the Migratory Bird Act in which the Canadas are still protected under. As far as Canada "considering them to be a pest" is relative. It is still the country's national bird...and if you have ever seen them fly overhead you will understand why.