Hearing about the Willet sightings, I headed to Cedar Swamp Bridge in Salisbury yesterday (4/23) to have a look for myself. I didn't see any, but did have the pleasure of meeting Ted Murin there who was also investigating the reports, and would like to take this chance to thank him again for a good look at Upland Sandpiper, and Blue-Winged Teals through his scope.
Also seen and heard there:
Spotted Sandpiper (Teetering atop the massive log/refrigerator jam by the bridge)
Coopers Hawk (Unsuccessfully spiraling in amongst the spiraling Swallows)