From Brian's note of 3 distinct groups today (including presumably the 40 which I also saw), and also from previous records this Autumn, it looks as if the Bracebridge Heath area is a favoured inland PFG flyway, whether they are flying N - S or W - E at this time of the year. I presume that, in addition to other migration or local movement strategies, for experienced,older returning birds the flyway is imprint-memory linked to the two very large visual navigational aids - a "bird's eye view" indeed -between which BBH sits : Lincoln Cathedral to the North RAF Waddington Airfield to the South. One wonders where the nearest previous stopover/staging areas might be.
Regards,
Freddy
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