In a beautiful evening light a barn owl quartered a wildflower meadow. And I remember Robert Macfarlane's 'Wild Places of Essex': "We think of barn owls as birds of dusk and night, haunters of the dark. So to see them hunting by day along the Essex sea wall is startling. In daylight they resemble apparitions, the closest thing to ghosts in the bird world, flying with a supernatural vigilance. They set the land over which they move alight with wildness, they pass through the air with the silence of falling snow."