“It appears to me that fundamentally changing the character of the land over which sporting rights are granted, though it is not with the deliberate intention of injuring the sporting rights, and though it is a thing which a landowner would have power to do if he does not injure the rights of others, if it has the necessary effect of substantially injuring the rights of others is a derogation from the grant, and is a substantial interference with the profit à prendre granted. If this is true of building affecting the whole land, or cutting down all the timber on the land for same: see per Eve J in Dick v Norton, it appears to me to be true of partial changes in the land, provided they substantially injure the rights granted. ”
“..I regard the lease of sporting rights in this case as a lease of rights over farm lands. Though such a grant would not operate to restrain the landlord from interfering with any reasonable and normal operations which might be deemed advisable for the purposes of dealing with the land to the best advantage as farming land, he would have no right to put the land to uses which have nothing to do with farming requirements, so as to oust entirely the sporting tenant from exercising his rights over a substantial part of the land included in the grant…In my judgment, what the defendants were threatening to do by their conduct, if not restrained by injunction, was to entirely prevent the plaintiff from exercising any shooting rights over 12 acres and, I think, also to damage to some extent his shooting rights beyond that area by frightening the birds away.”
“From the authorities it would appear that injury to shooting rights from the ordinary management of land is not an injury of which the shooting tenant can complain.”