We have had an unusually warm autumn so far this year.
September was the warmest for at least 10 years and October seems headed that way also. In 50 days since 6th September, only 6 days have been below the average temperature expected for that day.
There may be some linkage between this and these sightings e.g. through wind direction further north.
[ Last edited by wgeoff at 28/10/2008 08:59 ]