Good news! The Tompkins Square hawks have had at least one hatch over the weekend.
I believe a hatch started or occurred on Saturday, April 20. The behavior of parents, Christo and Amelia changed that day - she kept fussing around in the nest and sitting up higher, indicating something was going on underneath her. Christo also made two food deliveries to the nest. There had been a heavy rainfall the night before, and Christo brought in several pieces of bark, possibly to create a new dry layer in the nest.
This evening, I watched Christo again deliver food to the nest, but it was raining, so Amelia was reluctant to get up.
Meanwhile, the Washington Square Park hawks have had a hatch and you can watch the nest activity on the live NYU hawk cam. For more details and updates on the Washington Square hawk family, check out Roger Paw's blog.