From Jeff Ellerbusch:

Two very productive Somerset County stops this late afternoon…

Studdiford Drive had 2 Semipalmated Plovers (they’re back), a very nice, full breeding Dunlin, and 2 Killdeer. It was nearby Opie Rd though that had the big highlight with a White-rumped Sandpiper which was feeding in the main shorebird puddles. Also on Opie was a singing Prothonotary Warbler in the marsh area between the main Shorebird field and the River (maps for everything below).

The local Killdeer parents, who have two large youngsters now, were, unfortunately, pretty aggressive towards the White-rumped. One particularly charge by one of the parents resulted in the White-rumped completely leaving the vicinity….however it did return shortly after and was still feeding when I left around 5:45. If looking for the White-rumped keep in mind there is some long grass that the bird was feeding in and out of, though most of the time it was clearly visible.

(Google Maps)

Dunlin- 40.548403,-74.698727
Best place to pull over on Studdiford- 40.548154,-74.699462
White-rumped- 40.518872,-74.719187
Prothonotary- 40.518448,-74.720024

Jeff