This from the Iowa list:
Just in case anyone's interested in this, a Ross's Gull was found this
morning off the Swimming Beach at Lake Yankton along the Nebraska/South Dakota
state line, not far from Sioux City, IA. http://birdingonthe.net/mailinglists/NEBD.html
The Denver Ross's Gull was also still present this morning as
That makes two Ross's Gulls within a week of each other! Might want
to double-check all Bonaparte's Gulls.......
Next stop, Smithville Lake?