Last year, while we were all busy talking to people about the peregrines that perch on the Tate Modern's chimney, a pair of heavily made-up, dark clad Goths having a romantic picnic behind our trailer were interupted by one of the birds hungrily snatching a pigeon right in front of them! Of course we, armed with telescopes, cameras and binoculars, completely missed it.
On Friday I stopped off on the South Bank on…