The podcast is an episode of 99 Percent Invisible. This podcast is about design but somehow and for some reason its episode "Unseen City: Wonders of the Urban Wilderness" chimes perfectly with how I see the urban landscape as I walk about London. This may just be me, I may be odd, but I thought I'd share it with people who either don't see the world this way or who want to show other people what it's like to be them.
Just one final story of urban nature. About a month after we moved into our flat in North London we saw a sparrowhawk catch and kill a juvenile magpie in our garden, meters from the glass. The incident took over half an hour, with alarm calls and cackling from the traumatised magpie family as the sparrowhawk mantled its prey.