Sunday, June 11, 2006, at the North Tract of the Patuxent Research Refuge:

Great Blue Heron
Mallard Duck
Black Vulture
Turkey Vulture
Red-shouldered Hawk
Killdeer
Mourning Dove
YELLOW-BILLED CUCKOO
Ruby-throated Hummingbird
Norther Flicker
Eastern Wood Pewee
Acadian Flycatcher
Eastern Phoebe
Great Crested Flycatcher
Eastern Kingbird
White-eyed Vireo
Yellow-throated Vireo
Red-eyed Vireo
American Crow
Tree Swallow
Barn Swallow
Carolina Chickadee
Tufted Titmouse
White-breasted Nuthatch
Carolina Wren
Blue-gray Gnatcatcher
Eastern Bluebird
Wood Thrush
American Robin
Gray Catbird
Northern Mockingbird (one probably doing an Olive-sided Flycatcher 
impression)
Cedar Waxwing
Northern Parula
Pine Warbler
Prairie Warbler
Black-and-white Warbler
American Redstart
PROTHONOTARY WARBLER (still at Bailey Bridge Swamp)
WORM-EATING WARBLER (refound from 5/27 in different location)
Ovenbird
Common Yellowthroat
Hooded Warbler
Yellow-breasted Chat
Eastern Towhee
Field Sparrow
Northern Cardinal
Indigo Bunting
Red-winged Blackbird
Brown-headed Cowbird
Orchard Oriole
American Goldfinch