They start between six and six thirty in the evening. They’re usually distant. If they have a motive, it’s internal and psychic: like the sounds of someone with a head wound, they are not rational except in relation to themselves. At times they seem to move closer, the way sounds do on a wind, especially in the night. For a moment, the listener is able to distinguish more than one voice, perhaps even differentiate male from female. There are qualities of both plaintiveness and aggression, but words are hard to make out. They reach a peak by ten in the evening. By midnight they have moved away for good, and the centre of the little town is dark and quiet.