I received this brief note of updates from Bob Walters today, it appears the kids are hunting:
I was downtown on Saturday evening on August 6. I watched a young-of-the-year bird stoop on a pigeon from the southeast corner of the Key Bank Tower (KBT) to the east of State Street (it missed) and then return toward the KBT and out of view. Later, I noted a bird (impossible to determine if an adult, or young-of-the-year) at roost up against the tinted glass where the glass intersects the main column on the west side on the south face of the COB and Cynthia picked up a bird at roost on the twelfth barred, fire escape opening on the north side of the COB.
Plus ... I visited the IMC on Sat., August 6 and from <19:45 - 19:55 observed and studied an adult tiercel PEFA (Peregrine Falcon) perched on the lower, right-hand corner of the lower, support member of the sign (Intermountain Medical Center). No word, so far from the maintenance fellow who was going to take a look into the nest box.
All for now.