At the turtle pond I spotted what turned out to be a turkey vulture, and learned how to identify them. We went from there up to the reservoir. On the way there we saw a bunch of sparrows and dark-eyed junco, and I spotted what turned out to be a golden crowned kinglet! I tried to get pictures but the small frenetic birds are not cooperative. Then on to the reservoir where we saw herring gulls, black-backed gulls, these gadwalls, 2 male bufflehead, two male hooded merganser, a bunch of ruddy ducks, a few northern shovelers, and of course mallards and canada geese. While we were there I found a red-tailed hawk, who was joined briefly by a second one, flying. It was great! Heading back to the museum we found a red-bellied woodpecker, common grackle, yellow bellied sap sucker, and red-winged blackbird. I continued on around the lake, near the bridge across the upper lobe I saw a red-tailed hawk perched, but it flew off quite quickly. I tried to follow it and saw it circling overhead many times, didn't see it perched again. Saw blue jays, cardinals, and one black-capped chickadee.