I walked along the C&O Canal, last Tuesday morning, between MP 69 and MP 71, where Antietam Aqueduct is located. Highlights included Warbling Vireo (heard a day earlier by Sandy Sagalkin), N. Parula, Yellow Warbler, Yellow-rumped Warbler, Yellow-throated Warbler (earlier heard, but not seen by Pete Webb and me on 4/15), Palm Warbler (yellow race). There were also numerous N. Rough-winged Swallows at the mouth of Antietam Creek, as well as numerous female Red-winged Blackbirds feeding in the trees at that location.

The complete list of thirty species is as follows:

Great Blue Heron
Turkey Vulture
Canada Goose
Mallard
Mourning Dove
Red-bellied Woodpecker
Northern Flicker
Eastern Phoebe
Warbling Vireo
Fish Crow
Northern Rough-winged Swallow
Carolina Chickadee
Tufted Titmouse
White-breasted Nuthatch
Eastern Bluebird
American Robin
Northern Mockingbird
European (Common) Starling
Northern Parula
Yellow Warbler
Yellow-rumped Warbler
Yellow-throated Warbler
Palm Warbler
Chipping Sparrow
Song Sparrow
White-throated Sparrow
Northern Cardinal
Red-winged Blackbird
Brown-headed Cowbird
American Goldfinch

-- 
Elliot

-- 
Elliot Kirschbaum
Shepherdstown, WV
kingfisher501 at gmail dot com