A recent trip to Northumberland provided perfect red squirrel spotting opportunities, especially since there was a very busy peanut feeder on a tree behind the cottage where I stayed. From the North of Northumberland and into Scotland they're the predominant species, but much further South than that there are just a few small pockets where you might expect to see them (for example: in Wales; near Liverpool; on the Isle of Wight; in East Anglia). The Forestry Commission has a good map of the UK distribution (albeit from 10 years ago).
The squirrel in this particular picture is demonstrating how its colourful coat is a positive boon for hiding amidst autumn leaf fall.
