Lots of nice birds along the C & O Canal around Mile Post 8:

12 active Double-crested Cormorant nests
4 Wood Ducks
Green Heron (first-of-the-year)
12 Black Vultures (10 roosting in 1 tree)
Red-shouldered Hawk on nest (no sign of chicks yet)
Belted Kingfisher
Red-bellied Woodpeckers (4)
Downy Woodpeckers (3)
Hairy Woodpeckers (3)
Pileated Woodpecker (female, aberrant color on shoulders...kind of bronze)
Eastern Kingbird (3)
Warbling Vireo (seemed to be everywhere)
Eastern Bluebird (3 males)
Blue-gray Gnatcatcher (also seemed to be everywhere)
Tree Swallow (half dozen over the river)
Northern Rough-winged Swallow (several dozen on the river)
Barn Swallow (just a couple)
Northern Parula (half dozen...always in ear-shot)
Yellow-rumped Warbler (many....very many)
Yellow-throated Warbler
Pine Warbler
Prothonotary Warbler (only 4)
Northern Waterthrush (2; 1 walking in stream bed, pumping tail; other singing)
White-throated Sparrow (saw 4-6)
Eastern Towhee (female...very fetching)
Baltimore Oriole (only heard 2)
Orchard Oriole (just one, but in same spot as last year, near Cabin John Creek)

Plus many cardinals, nuthatches, titmouse, chickadees among the other regulars.

Good birding,

--
Frank Powers
Glen Echo, MD
Montgomery County