Dan Eberly and ! toured the Rock Creek Park Maintenance Yard and  
Ridge and saw the following warblers:
Black-throated Blue
Black-and white
American Restart
NASHVILLE
Common Yellowthroat
BLACKPOLL


Others:
Red-eyed Vireo 4+
Scarlet Tanager 6
Wood Thrush 2
HERMIT THRUSH
Woodpeckers: Hairy, Downy, Flicker, Pileated
Eastern Phoebe
Plus many Robins, Chimney Swifts, White-breasted Nuthatches,  and  
Titmouse

Have fun birding!

Wallace Kornack
Washington  DC