I had briefly posted notification of seeing the Tufted Duck at Ankeny Pintail Marsh today at 11:30. I first zeroed in on the bird as it dove repeatedly near the west edge of the water in close company with 2 American Coots. I and another birder, Shane Pruett (sp?), were sure we were looking at the Tufted Duck due to its dark coloring and dark bill that really made it stand out as different than nearby scaup. No Ring-billed Ducks were in the vicinity. We couldn't make out the tuft at that distance though. As we were about to call it good, an eagle flew over and spooked the ducks causing a mixed group of L Scaup, Bufflehead, and Ruddy Ducks to fly and land almost directly north of the parking area. Amazingly, the Tufted Duck was among them. I was able to get some photos that really show the tuft as the group almost immediately started swimming back to the west so the Tufted was not diving. Unbelievably good fortune!!