I visited Riverside Church after work to see how their pair of Peregrine Falcons were doing. Both were visible, one perched on the northwest corner, and one flying around the church tower when I arrived. I hope this is a sign that their eggs have hatched, but we won't know for a few weeks.
Update: Robert Schmunk saw two nestlings peaking out from the Falcon's scrape on Sunday, June 3rd. So, we'll have fledglings within a few weeks.