Today activity has picked up a bit, well the mating has anyways.
This morning I spotted a falcon nosing around the "usual" nest ledge again. In the early afternoon, I was out walking the dog and managed to witness an interesting mating. Mom flew out to a high tree perch, and soonafter Jack flew over and a quick mating took place. This was cool to see happening in a tree, more natural than on a building ledge.
At 5PM I was treated to another quick performance, this time back at the south side ledge.