yup foggy here temp -1c i'm guesing its freezing fog-just heard a 737 (or airbus) climbing out of liverpool 09-so it must be patchy
garden nice and crunchy to walk on, rooftops white with frost.........nice!
I'm not a bird watcher (well not the feather kind ), but I wouldn't get too excited.
if you read the RSPB site, it says big winter influxes happen now and again anyway, called irruptions.