Barbara and I checked the airport quarry pond along Belt Line Road south of the Rockford airport, where we found a pair of Black Terns flying over the pond on the airport side of the road. They then crossed the road and flew over to the larger pond in the locked quarry. Also present were a pair of Caspian Terns, an Osprey, hundreds of swallows of several species, a few shorebirds (Greater Yellowlegs and Semipalmated Sandpipers), Great Egrets, and the other usual species. We noted that the large dead tree that was a favorite perch for Bald Eagles is no longer there, so it must have fallen down.