I don’t know the origin but my guess is that one person got really confused and the idea stuck. My bet is that is it was started by someone related to Rose from the Golden Girls. Saint Olaf, MN had lots of bizarre stories according to her.
I am only partially kidding. I am from rural Louisiana and we have sayings that are almost unexplainable to outsiders as well. The idea of calling a goose a “grey duck” just sounds really funny. The local Scandinavian population may have just struggled with translation and people there just stuck with it.
Southwest MN native here - never played the game at all.
However, there was a large debate in the refectory/dining hall one day at college, where the out-of-staters were completely confused by the concept of ‘grey duck’ while in the in-state folks were sure the others didn’t understand color. I was mocked for not even being aware of the game.
I grew up in Connecticut, where we played duck, duck, goose in grade school. (Tag generally needs a big space to spread out, but this game could be played in a classroom, if you cleared some space.)
Funny thing is, I was actually wondering if they were doing “duck, duck, goose” or the Minnesotan “duck, duck, grey duck” when I saw the celebration. Now I know. I was really hoping it was the latter.
That does seem to be what inspired it. (My thoughts were something along the lines of correcting the announcers when they said they were playing “duck, duck, goose.” I was like, “No! They’re from Minnesota! It’s duck, duck, grey duck.” Alas, the sportscasters were right.)
The true origins are probably lost to time, but my understanding is that one of the swedish names for the game is Anka, Anka, Gås, which translates to Duck, Duck, Goose. Another swedish name, though incredibly less popular, is Anka, Anka, Grå Anka, or Duck, Duck, Grey Duck. So this really only moves the search back a step but my suspicion is that at some point in Minnesota’s history, members of the swedish community who knew it as Anka, Anka, Grå Anka moved to Minnesota and their version became the local dominant version.
I think the whole debate is silly but Duck, Duck, Grey Duck is objectively more aesthetically pleasing to hear and is therefore the correct choice.
To add: I’m from NYC. But so is my wife, but from this weird and exotic place Brook Lynn, and she occasionally will come up with maddening discrepancies similar to OP.
Based on my own experience as a native Swede, neither version of the game existed in Sweden some 40 years ago, so I think both “Anka, Anka, Gås” and “Anka, Anka, Grå Anka” must be translations of the (American) English versions.
What we did play was the more tumultuous version where we didn’t sit in a ring nor run in circles, rather just try to touch each other (or hit each other with a thrown ball) while freely running around, thereby rendering the turn to the person hit. This game was called datten (from Swedish “du ä’t” = “you’re it”).
That’s what we call “tag” in the US. Or simply “it.” (As long as it’s played without a ball. There’s a game called “dodgeball” which would be something like that, except getting hit by the ball makes you “out,” not “it.”)
As noted earlier, I never played the game - but my understanding of the MN version is that they call other colors “red duck, black duck, green duck, grey duck!”. I am undoubtedly wrong, though.
The origin story I remember (but can’t find a cite for) is that there was one Minneapolis elementary school teacher back in the last century who changed the classic “duck, duck, goose” to the version you cite, as a way to help her students learn colors. It then expanded from her classroom to the Twin Cities in general, but it’s at best metro-area thing, certainly not a Minnesota-wide phenomenon.
The thing is that, as far as I know, the game isn’t played with other colors. It’s just “duck, duck, gray duck.”
It’s not just the metro. People in my Facebook feed from Duluth and the Iron Range do “duck, duck, goose”, it’s true; but all of western MN and ND seem to be “grey duck” folks. (Note that the author of the Strib article is from Grand Forks, North Dakota, over 300 miles from Minneapolis-St. Paul.)