"What is lost when birds are lost? Above all, the creatures themselves, in their own splendour and right. And for humans — language, story, beauty, possibility, imagination, lifts of the spirit, ways of being otherwise. Birds are our place-makers, memory-keepers, calendars and clocks. They stitch the world’s parts together: earth to sky, river to woodland, mountain to sea, country to country, hemisphere to hemisphere."  --Robert Macfarlane, The Book of Birds: A Field Guide to Wonder and Loss