35 Years. One Whistle. Still Works.

In 1990, Ronald Huisman set up on the squares of Amsterdam with a whistle he'd designed himself. No shop. No website. Just Ronald, the whistle, and whatever birds happened to be nearby.

It worked then. It still works now. Same design. Same guy. Thirty-five years later he finally has a website — and he's a little suspicious of it, honestly.

If you've ever walked through Amsterdam and heard a bird call that turned out to be a man in a jacket — that was probably him.