Probably the most notable change this month has been the increase in the number of coal tits. Their behaviour of caching food makes it hard to count, as they are 'in and out' in a matter of seconds, but the most we have counted at once up to now is 6. This is fairly unusual for coal tits in the south east, and the increase has been noticed by many customers too. Subsequently, sales of black sunflowers in the shop have increased exponentially. Sunflower hearts and niger seed are also selling fast thanks to the huge number of goldfinches around at the minute. Goldfinches are a resident species but many spend the winter in France or Spain, so October sees a huge movement of birds heading south, but feeding up in the south east before crossing the channel.