Jan Morris on the decline of whistling

Jan Morris makes some original observations on the decline of whistling!

Now there's an unusual topic.

It's a pity nobody ever taught me how to whistle. I have quite a complex about it! I can't even do a proper version of "Singing the Blues". Mind you, I can't yodel either. Nor could Johnny Cash, to judge from this version of Blue Yodel No 9, with Louis Armstrong.