From Hawkwatcher and Photographer Jeff Johnson who is standing vigil with the sick fledgling--
Park rangers left about five minutes ago in what was an unsuccessful attempt to lure the ailing female to the ground from her perch behind the MET. Ailing female fledgling still engaged with her surroundings but silent and in same place. But I've not seen any other Red-tails at all on this trek. Heard one call as I was scanning the tree Opera Star was in last night but got no eyes on it.
MORE TO COME LATER--PHOTOS OF THE DAY AND COMMENTARY