I started a new job in August last year driving/delivery for Argos,I was up the a9 the first few months and stopped in lay-bys for my breaks ,was watching birds coming out of farms on my counting 20/50 roughly were racers (with rings) have been all over Stirlingshire and livingstone Bathgate Armadale areas and you would not believe the amount of birds with rings that I see every day,there was an old school in Armadale I counted over 40 in my half hour break, so all not birds are taken by Percy I think many go wild,only my own observations of the last few months