On the other side of Mombetsu are 2 lakes: Komuke and Shibunotsunai. The former held 5 Japanese Crane and the latter had about 100 Greater Scaup. The narrow strips of land between these 2 lakes and the sea is very good for birding. White-tailed Eagle, Hobby, Japanese Green Pigeon, Eastern Marsh Harrier and many passerine species were present.
The above Chestnut-eared Bunting was there and was the only one seen on the trip: they seem far less numerous than down near Hakodate.