I moderate the Canadian Hunting section of a large US based duck hunting website. For most resident waterfowl hunters in Canada, NR alien hunting is a big issue. The leasing/buying of prime land by Americans who just happen to bring up a new group of "friends" every week of the season is one issue. Outfitters that allow their clients to shoot full limits every day and then PAY Hutterites and Natives to take the birds off their hands is another. Shooting and dumping of birds is a common complaint.
The problem are real enough that in a response to numerous comlaints, Alberta put in a 6 day waterfowl license for NR aliens and has cut the kill numbers of certain species of geese only for NR aliens. More restrictions are likely to follow.
Most of the Americans who hunt here are great (I guess -- I've only met 6 groups now and all of them were dumping birds, not retrieving birds shot, or trying to give them away to anybody driving by) but a growing number seem to be viewing hunting in Canada as their God-given right. They get indignant that anyone here would even think of restricting their "right" to kill several hundred birds a week.
One fella, when called out on his pics showing that he had killed 600+ birds in 10 days, then tried to explain it away as "group hunts" and stated that they gave all of their birds away to the "Alberta orphanages -- and those kids were some damned glad to get some meat in their diets too."

Never heard from him when it was pointed out that there hasn't been an orphanage in Alberta in for decades.