I'm reading Eduardo Galeano's Upside Down, a book that -- so far -- has nothing to say about the abilities of some birds to engorge themselves with their tail up. Like our neighbourhood nuthatch. And I don't expect to see anything in the remaining pages on that topic.

Nearly thirty years after Galeano's book was published, the human world is even more upside-down than he accounted for.

And a nuthatch, tail up, is refreshingly right-side-up.