An escaped goose?! There are a few individuals that hang around with the Greylags and Canada Geese. This one is regularly on Heron Meadow at Ferry Meadows CP with Canada Geese. Where they come from originally is anyone's guess but the large feral populations in Bedfordshire and Norfolk/Suffolk is now deemed self-sustaining and may well account for some of our birds.
Barnacle Goose (Branta leucopsis)
Digiscoped with Nikon Coolpix 995 and Leica APO77 with 20x eyepiece