Birds also have regional ‘accents’; their song varies according to their home: ‘A Marseille chaffinch sounds different from a Calais chaffinch’. And like cliquey humans, birds reject intruders with a different accent. The authors give us a little telling off. The main philosophical message is ‘live in the moment’, as birds do. If we’re grieving, we shouldn’t feel we have to go out into the world: it’s fine to put on our ‘eclipse plumage’ and hide away for a few weeks. But if we’re happy, then live life to the full.