The locals sing "O Canada!" and there is no muttering, it's belted out just as loudly as those singing the "Congreve Rocket" song, but without the hand-on-the-heart thing! Incidentally, I have just discovered after nearly 50 years of being in Canada, that t
he song was originally commissioned by the Lieutenant Governor of Quebec, Théodore Robitaille for the 1880 Saint Jean Bapiste Day celebrations. The original lyrics were in French; an English translation was published in 1906. That is a rather ironic history.
Your last sentence made me check to see if Greenland was part of North America - it had never occurred to me before. According to Wikipedia, it is, so that must be true.
Here's a wider view, which will narrow the location down to two provinces and one territory:
