An autumnal sun, photographed through reeds and other vegetation on the edge of a wildfowl pond at WWT Slimbridge.

Canada geese, silhouetted against a bleached sun.

Imagine yourself lying flat, staring up at fast-moving clouds, surrounded by jostling reeds in the late-autumn cold. The birds' shadows shift across the wetlands, growing smaller and gaining definition as they descend towards the scrape. Everything is in motion.