We again dipped into Google for more information, and learned this from Wikipedia:  “The red knot is a medium-sized shorebird which breeds in tundra and the Arctic Cordillera in the far north of Canada, Europe, and Russia. It is a large member of the Calidris sandpipers, second only to the great knot.”  The caption is in Korean, with the scientific name in Latin.  Two of these unused cards are available, with pre-printed colourful postage and apparently endorsed by the World Wildlife Fund.  (Or not.)  Grades: 1