I understand this was not the exact providences you requested but:
I know it might be a long drive for you but I suggest Kris Wujyk owner/guide at Manitoba Snows. I believe the website is Manitobasnows.com. He has access to around 30,000 acres of land to hunt around Neepawa, MA, AKA Minnedosa Pot Hole Region. Morning drives are literally less than 20 minutes, sometimes only about 3 minutes if field usage of the birds is close to the house.
Been going several years now and have to tell you your worst 4 days in that area under his guidance will exceed the amount of birds you will harvest under a normal man's hunting conditions in the field of 16-20 days a season in the states. Four hunters last year took 176 birds in 3.5 days of hunting. Plus you stay in a local house with 3 meals a day. As any hunt the traditional days during the hunt is we have one exceptional day shooting our limits of dark/light geese and ducks within a 1 hour span in the morning. A semi-good day of shooting a limit of darks with peppering of light geese. Full filling the duck limit in the afternoon. And one day typically where we go to all the way to noon shooting just short of our daily limits on darks. And the last day being an average 3 hour hunt. Still nothing but pure enjoyment in the hunt and with friends.
The last three years have been seasonably warm but have not made any difference...Ok I admit, it is slower...But taking three instead of 1 hour to take your limit doesn't hender my beliefs of it causing a "0" on your harvest list.
I honestly believe if this area was opened to the same conditions you have in South America (argentina, Peru, etc...) in regards to hunting around peak migrations, you would not have to hunt more than one day. Cleaning that many birds would just absolutely suck. One day to shoot, 2.5 days to clean.
Have had as many 5K cacklers locking in the spread with anxiety that just wants to make you scream as the birds are not only on the ground but continuously landing. There is a 10 minute video on youtube from another guide we have hunted with in the past. If you search for it look under Feathered Horizons Goose Hunt Manitoba...There might be several videos of this but the one you need to find is 10 minutes long. The first 5 minutes of that video is of a group of us. Now if you watch this I must say you will experience a day or two like this if the cacklers are moving through the area. One of the primary reasons I make the trip every year.
If you wanna snow goose hunt with him...Go in April when they are returning.
Regards,
Kristan