Technique for filming peregrines

If you study the picture carefully you will discover the best technique for filming urban peregrines when there isn’t one anywhere in the vicinity.

Graham doing a Harry Worth
Harry Worth had a comedy show on TV in the 1960s – the bit I remember is the title sequence

The technique doesn’t conjure peregrines from an empty sky, nor does it allow you to spot them tucked away on a hidden balcony with a dead cuckoo, but it does relieve the boredom and is good for team morale.