Guided Birding Tour in June 2018 Robert from USA- Han river estuary, Gyeonggi province, South Korea in June 2018- Bird list Mandarin DuckEastern Spot-billed DuckRing-necked PheasantGreat CormorantGreat EgretIntermediate EgretLittle EgretCattle EgretChinese Pond-HeronStriated HeronBlack-crowned Night-HeronBlack-faced SpoonbillOriental Turtle-DoveCommon CuckooPygmy WoodpeckerWhite-backed Woodpecke..