On September 18th 2017 I was lucky enough to witness a massive movement of hirundines at Canons Farm, that included 6,710 House Martins (a Surrey county record) and 4,000 Swallows. It was one of the finest local days birding that I have had the pleasure to witness. And, for three years, that record has stood. Until today...90,000 at Dungeness on 23rd September 1989.
Apart from the hirundines, 60 Meadow Pipits, 10 Siskins and two Redpoll headed the same way, with nine Stonechat (four males) and two Whinchats grounded.
Congratulations are due to the new 'Surrey Hirundine Kings'! I have a feeling that their record may last a bit longer than three years.