What is it? Walking down a rail-side industrial backstreet, an ornate wrought iron entrance with busy events and wildlife sightings boards assures passers-by that this is no ordinary green patch. Within lie a shoebox wetland, a wildflower meadow and mixed woodlands, attracting avian, mammalian, amphibious and arthropod refugees from far and wide. Where is it? A little two acre patch of Farthing Wood in brownfields Camden, Camley Street is a haven known to many......