Took my first trip of the spring to Rock Creek (DC) this morning. Highlight was good looks at 2 Blue-winged Warblers (1 at Picnic Area 17, the other by the stables).  Good numbers of Palm (I only saw Yellow) Warbler and Blue-headed Vireo around.  Other warblers included Yellow-rumped, Black-and-White (2), Worm-eating and Ovenbird (last 2 heard only).  Other neotrops were Red-eyed Vireo, Baltimore Oriole, Great-crested Flycatcher and Eastern Kingbird.  Plenty of flyover Blue Jays. Gail and Barry stayed longer and might have turned up something interesting at the Maintenance Yard.
   
  Good birding
   
  Clive Harris
  Cabin John, MD