Mum believes in this cantonese saying, 肮脏吃肮脏大. At the heart of Bentong town, every nook and cranny of the celing corners the swifts build their little nests. All day long swooping down, twirling round and round the sky above. Buildings walls, window panes, five foot ways splattered with droppings of dirty white. Unnoticed by all living there, going about their daily chores. We have invaded their territory and now they, ours. In harmony with one purpose, to live.