After birding earlier this week at Magee Marsh in Ohio and driving back to 
Maryland in the terrible rainstorms we had yesterday, I woke to a beautiful 
morning on the last day of my week's vacation to go birding at the North 
Tract of the Patuxent Research Refuge. The highlight for me was the 
Warbling Vireo. There were several of them (4-5) at Bailey's Bridge Swamp.. 
Here's my complete list:

Great Blue Heron
Green Heron
Black Vulture
Turkey Vulture
Canada Goose
Wood Duck
Mallard
Red-shouldered Hawk
Red-tailed Hawk
Greater Yellowlegs
Lesser Yellowlegs
Solitary Sandpiper
Mourning Dove
Downy Woodpecker
Eastern Wood-Pewee
Acadian Flycatcher
Eastern Phoebe
Great Crested Flycatcher
Eastern Kingbird
White-eyed Vireo
Warbling Vireo
Red-eyed Vireo
Blue Jay (BTW, mama blue jay is raising 3 little ones in the tree behind my 
deck)
American Crow
Purple Martin (at the Wildlife Viewing Area)
Tree Swallow
Barn Swallow
Carolina Chickadee
Carolina Wren
Blue-gray Gnatcather
Eastern Bluebird
Wood Thrush
Gray Catbird
Northern Mockingbird
Northern Parula
Black-throated Blue Warbler
Yellow-rumpted Warbler
Pine Warbler
Prairie Warbler
Black and White Warbler
American Redstart
Ovenbird
Common Yellowthroat
Summer Tanager
Eastern Towhee
Field Sparrow
White-throated Sparrow
Northern Cardinal
Indigo Bunting
Red-winged Blackbird
Brown-headed Cowbird
Orchard Oriole
House Finch
American Goldfinch