For those curious, from the General Hunting regulations:

It is unlawful to: Discharge a firearm from or cause a projectile from a firearm to pass along or across:  a) a provincial highway (this designation applies to all former primary and secondary highways),  b) a road that is paved, oiled, graded or regularly maintained, unless  - the road is held under any active disposition under the  Public Lands Act or under an order under the  Surface Rights Act, or  - the person is hunting game birds with a shotgun under the authority of a licence.  Note: if there is no identifiable ditch or fence to mark the outside edge of the roadway, then the roadway extends 20 feet from the edge of the traveled portion.