White-winged Scooters at Chestnut Hill Reservoir.

I stopped at Hammond Pond and Chestnut Hill Reservoir on my way to work mid-day. My first stop at Hammond pond I was excited to find the first Hooded Mergansers of the season. Two crisp males and a female were working the far shore. I was also hoping for some Ring-necked Ducks, but I didn't see any. There were plenty of Mallards though and a Great Blue Heron. Among the gulls, one appeared to be different that the others, but they all flew off before I had a chance to turn my attention their way. The full list of birds from Hammond Pond can be found here.

Pied-billed Grebes, American Coot, Double-crested Cormorant

 My next stop was Chestnut Hill Reservoir. I was excited to see that the water was littered with birds. Mostly they were more than a hundred Ruddy Ducks in small rafts. And there were quite a few gulls, including Ring-billed, Herring, and Greater Black-backed. Also it was fun to see a number of American Coots that have returned as well, while Pied-billed Grebes and Double-crested Cormorants were present (how many species can I fit in a picture...). When I got to the tip of the peninsula I found Mallards and a single American Black Duck, but out on the far side were 3 dark ducks that I couldn't make out. I even tried to take a picture to enlarge on my camera, but still no luck. When I got to work though I loaded the pictures on to the computer and was surprised that one of them had a small white spot in the center of the head (bird on left, click to enlarge picture), they must have been White-winged Scooters! Not a common bird around here, they have been seen once before at the Reservoir and twice migrating over Millennium Park. Fortunately I saw that two other birders had also seen the White-winged Scooters before I was there, making me feel more confident on the ID. I also saw that I missed a female Green-winged Teal (eBird list with pictures of scooters and teal). But the White-winged Scooters were quite a treat. The full list of birds from Chestnut Hill Reservoir can be found here.

White-winged Scooters