Every winter, millions of birds travel to the UK to escape the harsher weather that sets in at their breeding grounds; families of whooper swans fly down from Iceland, ducks from across the continent fill our wetlands, and finches, thrushes and other small winter visitors often form flocks from Scandinavia and western Russia during the winter to look for and improve their chances of finding food.
Our resident blue, great, coal and long-tailed tits bulk out the flock alongside thrushes, and goldcrests flit around in the high branches alongside treecreepers and chaffinches.