I have given it more thought and I think this ability to use whistles to express the language might be due to how in Turkish we have syllables that are very structured and with distinct sounds.

I tried to "whistle Turkish" and "whistle English" and noticed in English, ambiguity emerged rather quickly. But with Turkish, words weren't as ambiguous.

Yes, exactly. They have the same ups and downs and you can hear the words in it.

First the sentence is said in Turkish and then "whistled" and I can hear the same sentence in the whistle. The way that it goes up and down, and the way that he stops and starts mirrors the words exactly and I can hear the words in it.