Good day at the family farm in the Upper Marlboro near the Patuxent River today:

Great Horned Owl        2 (pair?  both flew out of the same stand of White Pines)
Barred Owl                 1
Turkey Vulture
Black Vulture
Ring-billed Gull
Canada Goose
Mallard
Wood Duck
Great Blue Heron
Belted Kingfisher
Northern Flicker
Red-bellied Woodpecker
Morning Dove
Rock Pigeon (It'll always be a Rock Dove to me)
American Crow
Common Grackle
Red-winged Blackbird
Rusty Blackbird?
American Robin
Blue Jay
Northern Cardinal
Cedar Waxwing (pair in the yard)
European Starling
American Goldfinch
House Finch
Song Sparrow
House Sparrow

and some others I forgot about.  :)

-Eddie