I went for a walk about the invisible birds. Invisible because always present. Sparrows, pigeons, magpies, jackdaws, grackles and crows. And the ducks waddled on the thin Krasiński Garden’s ice, and the sparrow hawk dived under the pile of the branches, and the cormorant fishgreedy too, into the Vistula river. The fact, that something is invisible, doesn’t mean that it’s not present. And the birds are best seen with the ears.