I visited Washington Square Park for 3 1/2 hours today so I could have more chances to observe the little Hawk's jump-flapping progress.
The babe did trot back and forth quickly along the ledge a few times and exercised its wings but didn't do that much hopping.
Its wings are still pretty gappy:
It then stood in the nest for a long while before settling down at the back of the ledge.
I left the park to get a snack and spotted Bobby atop the northeast corner of One Fifth Avenue:
Sadie landed next to him seconds later:
She tucked in toward the back of the ledge:
The baby must have been napping because it didn't reappear over the next hour.
Bobby was still up and alert though:
A fellow Hawk-watcher checked in later in the early evening and reported the baby doing lots of jump flaps, a snack in the nest, then having a few more jump flaps before settling down again.