No sooner had I looked at the 3 fledglings on the platform that one of the adults spotted me and took off across the pond toward me. It made a couple of squawking passes overhead before returning to the platform. I took several frames as it passed overhead, but unfortunately the earlier clear skies were now being replaced with heavy overcast clouds. Still, I managed enough keepers of the birds, and even managed to witness one of the young leave the platform.
One of the adults had a silver band atop a tan band on the left tarsus, and a yellow band atop a blue band on the right tarsus. The other adult had a large, blue or black band on the right tarsus with the letters 'V87..' or 'VB7' On its left tarsus was a large silver band atop a smaller red band.