Ray Duffy writes:

"On Saturday I had American Redstart, Black-throated Blue, Black-and-White warblers at Schmidt's Woods and a Prairie Warbler at DeKorte along the Transco Trail. 

"The Tricolored Heron was around last night near the intersection of Transco and Marsh Discovery Trail.  I'm starting to see a bunch of bright juvenile Least Sandpipers as well."  (Thanks, Ray!)