원앙은 야행성 조류로 낮에는 다려도 해상에서 머물다가, 해가 지면 곧 바로 조천읍과 구좌읍 등 중산간 일대의 참나무 숲으로 이동해 도토리 열매를 먹는 것이 관찰되었다.
Mandarin ducks are nocturnal birds, and during the day they stayed in the sea at Daryeodo Island, and immediately after the sun went down, it was observed that they moved to the oak forests in the middle of the mountains such as Jocheon-eup and Gujwa-eup to eat acorns.