There has been a new development in the pigeon saga. In a letter in this Wednesday's edition of The Guardian, a reader wrote...
"As I left the M56 at approximately 60mph this week, I was shocked to be overtaken by two pigeons. Up until now, I had been completely unaware that pigeons were capable of such a speed."
So it would seem that, post-impact, not only is my feathered friend alive and flapping - but it looks like he's back to his old ways playing in the traffic and humiliating car drivers.
The reason that he left no mark on my windscreen is now clear - the closing speed was probably minimal. I must have just caught up with him briefly as he slowed between flaps.