Sllooooowwww morning at Rock Creek Park (gray-cheeked thrush was by
far the best out of only a handful of birds) so I headed up along the
C & O instead.

The first bird I saw out of the car was a Canada wabler, and I knew
things were looking up.  Many many more birds here than RCP, the best
of which were a pair of YELLOW BELLIED FLYCATCHERS.  No other warblers
were seen.

Pennyfield Lock:

Canada Geese (50 +)
DC Cormorant (10 +)
Mallards
Great Blue Heron
Turkey Vulture
Mourning Dove
Chimney Swifts
Belted Kingfisher (2)
YELLOW BELLIED FLYCATCHER (2)
Eastern Kingbird
Red-Eyed Vireo - a large group moved though, could have been more than
just REV...
American Crow
Carolina Chickadee
White Breasted Nuthatch
Carolina Wren
Grey Catbird
Northern Mockingbird
CANADA WARBLER
Northern Goldfinch
American Goldfinch

Best,
Nick

http://birddc.blogspot.com