Out before sunrise (which was at 6:55 AM this morning), I walked a different route, south along the SW 193rd Ave canal up to the channel that connects with the large lake in Sunset Lakes. This has the Lighthouse Island, which was shrouded in fog. At 7:09 an adult flew directly overhead from the direction of the PP nest. It disappeared in the fog but a few minutes later I saw it above the fog and appeared to disappear behind the trees just becoming visible on the island.