Along the entrance road toward Riley's Lock, I encountered a small flock 
of White-throated Sparrows.  Nearby, but not associating with the 
sparrows, was a somewhat larger bird that at first impression looked 
like a Veery.   I didn't get a good look before it disappeared, and I 
thought it was too early for a Veery, so I disregarded it.  Later, 
however, on the path west of the creek that runs from the canal back 
toward River Road, I got a better look at a thrush that really did look 
like a Veery.  When I got home, I checked the "Yellow Book" and found 
that the "early date" for Veery is April 9, so I guess the birds I saw 
probably were Veery's.  (What is the plural, Veeries?  Doesn't look right.)

Other than that, the best birds there were a singing L. Waterthrush and 
a Horned Grebe, plus at least 15 Yellow-rumped Warblers.  They seemed to 
be everywhere I looked.

Later, there were not many species at Hughes Hollow.  Best bird (if you 
can call it that) was a singing Brown-headed Cowbird.

	Bob Hartman
	Colesville/Silver Spring


Seneca/Riley's Lock
===================
Canada Goose                     2
Mallard                          2
Pied-billed Grebe                1
Horned Grebe                     1
Double-crested Cormorant         3
Great Blue Heron                 1
Turkey Vulture                   4
Mourning Dove                    1
Belted Kingfisher                1
Red-bellied Woodpecker           3
Downy Woodpecker                 1
Northern Flicker                 2
Pileated Woodpecker              2
Eastern Phoebe                   3
Blue Jay                         7
American Crow                    3
Fish Crow                        8
Northern Rough-winged Swallow   40
Carolina Chickadee               7
Tufted Titmouse                  8
Carolina Wren                    4
Eastern Bluebird                 1
Veery                            2
Northern Mockingbird             1
Yellow-rumped Warbler           15
Louisiana Waterthrush            1
Eastern Towhee                   1
Chipping Sparrow                 2
White-throated Sparrow           6
Northern Cardinal               13
American Goldfinch               3


Hughes Hollow
=============
Canada Goose              8
Ring-necked Duck          8
Pied-billed Grebe         1
Green Heron               1
Black Vulture             1
Turkey Vulture            1
American Coot             2
Eastern Phoebe            1
American Crow             1
Tree Swallow             50
Carolina Chickadee        7
Tufted Titmouse           4
Eastern Bluebird          1
Song Sparrow              2
White-throated Sparrow    6
Northern Cardinal         5
Red-winged Blackbird     30
Common Grackle           20
Brown-headed Cowbird      1