Guided Birding Tour in April & May 2019 Walt & Danielle from USA in April Namdong pond & Hwaseong lake Ganghwa island Namdong pond & Hwaseong lake Ganghwa island Tundra Bean-Goose Ruddy Shelduck Common Shelduck Northern Shoveler Gadwall Falcated Duck Eurasian Wigeon Eastern Spot-billed Duck Mallard Northern Pintail Green-winged Teal Greater Scaup Long-tailed Duck Common Goldeneye Ring-necked Phe..