Hi All,
 
Reading through the recent posts I've noticed Wislon's Warblers have not been too common. Therefore, for the sake of "the record"", I'd lke to report a little male Wilson's I saw this past Monday morning (5-11-09) adjacent to the large meadow near the Rock Creek Visitor's center.  It was feeding  high in the cherry tree right near the parking area. 
 
Jason Berry
Washington, DC