Several birders and I viewed a fairly steady stream of warblers this 
morning in the maintenance yard of Rock Creek Park.  The Black-throated 
Blue was seen in large numbers.  Other warblers included the 
Black-and-White, Blackpoll, Black-throated Green, Common Yellowthroat, 
Chestnut-sided (one with chestnut plainly visible), Magnolia, 
Nashville, Northern Parula, and Redstart.  Some other birds were the 
Scarlet Tanager, Gray-cheeked Thrush, Swainson's Thrush, and 
Ruby-crowned Kinglet.  The Rose-breasted Grosbeak was heard often but 
not seen.

---Wallace


Washington, DC