Fremont Bridge Peregrine Banding Video: I shot this as I was leaving the nest. If you look closely you can see that the birds are all now banded. This video gives you a pretty good sense of the nest area---the parents lay their eggs in the gravel area and the young spend stay right in this area for the first couple of weeks after they hatch. Once they get a bit older they will start to wander out on the girders. They take their first flights at at 38-42 days of age. Mom returned to the nest as soon as I got about 15 feet away. Fierce little birds aren't they!!!