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The bill and neck have traces of Greylag while the white cheek / neck patch is classic Canada Goose. These two species have been known to cross breed, in fact it is not uncommon.
Chris Brooks - www.dragonfly-images.co.uk
My Flickr site - www.flickr.com/photos/ceb1298
Lat/Lng: 52.9495, -1.0934
OS grid ref: SK610395