The Bobst Library nest is on the top floor of the building on a ledge.
The cord wrapped around her leg does not prevent Violet from flying off the nest. So, to capture her, you would have to use net or entice her into a trap with prey as bait.
This situation reminds me of the fledglings relocated to Astoria Park. They ended up having Frounce. We had to watch them as they got sick, and wait until they were so sick they became grounded. Those days not being able to treat the fledglings were horrible. I’m sure rehabbers experience this week after week.
So, we need an impossible rescue just as the eggs are hatching in an unreachable spot.
Here are some screen shots from the New York Times webcam this morning. Her right foot, seen in the photos on the left, is twice as large as her other foot. Violet’s in trouble, without a doubt. Her foot shouldn’t look like a lobster claw!