Ray Duffy writes:

"I had a Stilt Sandpiper in the Shorebird Pool this a.m. milling around with some Lesser Yellowlegs.  I found its easiest to pick him out by feeding style.  He's the bird that sort of looks like the yellowlegs but feeds like a dowitcher. 

"I also had a least bittern at the second channel bridge (the one past the Red-winged Blackbird blind with the view to the area that's usually a mud flat behind the north phragmite island).  The bittern was standing on that little tire and then hopped into the phrags once he saw me."  (Thanks, Ray!)