One of the fledglings got itself into trouble and was taken to the Animal Medical Center. It has lead poisoning and a lame foot. It is now in the Horvath's care.
I searched Morningside park for other fledgling, worrying about its health. I gave up, and as I walked east on 110th Street, I heard someone call my name. It was Lincoln Karim, who had an adult and a fledgling in view on different buildings. The adult was at 108th and Manhattan Avenue and the fledgling was on the lower roof of the building at the NW corner of 110th and Fredrick Douglas Boulevard.
After about fifteen minutes, the fledgling got up, and flew to Central Park. We could hear the robins and jays mobbing the fledgling, but couldn't find it. At dusk, with almost no light, Lincoln found the hawk. He had put his camera away, but was very kind to point mine at the hawk. I couldn't find it on my own.
So, tonight Central Park has a fledgling Red-tailed Hawk!