Another development Ephemeral stencils experiment was produced with birdseeds in a park. As foreseen, it quickly disappeared, eaten by dozens of pigeons that left no traces of the message, if not quite a lot of feathers.

Two results are produced: an immediate one, when the letters appear well defined by the salt or bread crumbs, and another one later, when the medium disappears, leaving only its mark. The evolution of the form of the message, before its complete disappearance, contradicts its meaning.