When we got there, Barry and Doris Transue eagerly took us out on their deck and showed us the bird walking around the pond, which was often feeding in a side-to-side motion. Thanks to them and Arlene's digital camera, I was able to get a fair number of identifiable photos that should cast any doubt about the bird's identity. They came out fairly well despite the tropically-humid, overcast, early evening light.
This bird represents only the 2nd record for Northampton County and only the 3rd record for the Lehigh Valley area. It was a new county bird for me and only the second one I've ever seen in the state.