Bruce practising...

...his pigeon ambush technique in readiness for the cold Winter months when he thinks he'll have an edge.

Actually these pigeons are very streetwise in coping with cyclists, pedestrians, cats and dogs. I've mentioned this to Bruce but, as usual, he just won't listen!

Big ambush

More Bruce

To keep alive in the wild, a pigeon needs to keep its eyes open for predators. Having eyes on the side of its head gives it a field of view of 340 degrees and, in order to fly at speed, its brain can process visual information three times faster than a human's. If a pigeon watched a feature film, 24 frames per second would appear to it like a slide presentation. They would need at least 75 frames per second to create the illusion of movement on screen. (This is why pigeons seem to leave it until the very last second to fly out of the way of an oncoming car: it appears much less fast to them.)
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Top 10 funniest one-liners at the 2012 Edinburgh Fringe:
8. Stewart Francis "I saw a documentary on how ships are kept together. Riveting!"