Day of the Hawks: Red-Shouldered Hawk Pair

A pair of red-shouldered hawks arrived was observed early this morning. As red-shouldered hawks are known to return to a given locale for many years, I would like to think that today's pair is the pair observed on three occasions in 2007 (1, 2, 3).
Later in the afternoon, a single hawk was observed on two occasions - or was it on observation of each of the two hawks.
I managed to catch one of the red-shoulders in flight also.