Hi Euan,
Great story . . reminds me of a cat - crow meeting I once watched . . . crow was standing out in the middle of a football pitch . . . cat started stalking the crow, creeping up ever so softly, little bit, pause, little bit more, trying desperately but impossibly to be hidden on the short grass . . . crow carries on feeding, doesn't look up . . . cat creeps closer, closer, so slowly . . . cat gets to 5 yards away . . . crow looks up briefly . . KRRAAAAAGGH!! . . cat stands up, walks away quietly, look of pure innocence on its face, "who, what? ME?!? I wasn't doing anything! me trying to hunt? the very idea of it! how could you suspect me!" . . . . . . crow goes back to feeding . .
Michael