I have no personal experience, but I have been told the problem with snow geese is the great numbers they congregate in. This makes them extremely hard to decoy, or jump shoot [sneak up on] and generally means that the entire mass leaves the area of the blind after one volley of shots.
The answer may be some good old fashioned medium range sniping with quiet, subsonic rounds. However, this practice is not acceptable under game laws.
Anyone with any experience with these buggers have any thoughts?
I got more than I can deal with with mallards, quail, and chukars.
During the 50s and 60s, my dad and brothers would field stalk Canadas. While that technique worked with mallards, the Canadas were so smart and edgy that the number of birds we shot over the years could be counted on two hands. Sometimes our car driving a mile away spooked the buggers. It was the monumental challenge of that method that kept us intrigued by what was a really sporting effort.
Fast forward a few decades. The Canada’s descendents eat out of people’s hands in the downtown park.
Surprising 10,000 mallard flocks in the fields years ago used to impress me. But two years ago I came upon a 5,000 Canada flock gathered on the soccer field of Gonzaga University next to the Spokane River. A walker had intentionally let his dog off his leash, and all 5,000 took off at one time and went over my head onto the the river. The sight and noise was incredible.
How about seeding their food supply with a form of birth control? This was done in MA with racoons in certain areas where rabies was a problem among them.