All ducks sound exactly like they’re speaking Danish so I don’t see how they could tell....
Yeah, it had to leave its pretty feathers at the border as pawn in exchange for future Danish welfare benefits ;-)
Because it's indefinite. If you were to say, 'it's the Danish duck', that would be 'den danske and'.
I think I'm swearing too much lately, because my autocorrect thought I was gonna say "it isn't a Danish ❤❤❤❤".
That is how we speak, I’m afraid ... a native speaker would rarely say “Det er” very distinctly, unless they are stressing the words. It is very common to pull the words together and simply say “De’r” or even leave out the “er”. Not on purpose necessarily, it just happens when speaking at normal speed. But since you are on level 25 you have probably encountered this before ;-)