Mid-afternoon on Sunday around 4pm at the Little Patuxent Oxbow Lake 
Nature Preserve:

Great Blue Heron
Green Heron
Canada Goose
Trumpeter Swan #960
Wood Duck
Mallard
Red-tailed Hawk
Killdeer
Lesser Yellowlegs
Greater Yellowlegs
Spotted Sandpiper
SEMIPALMATED SANDPIPER
Red-bellied Woodpecker
EASTERN WOOD PEWEE
GREAT-CRESTED FLYCATCHER
Yellow-throated Vireo
Fish Crow
Blue Jay
Tree Swallow
Northern Rough-winged Swallow
Barn Swallow
Carolina Chickadee
Tufted Titmouse
Blue-gray Gnatcatcher
American Robin
Gray Catbird
Northern Cardinal
Red-winged Blackbird

A good example of how environment plays a part in behavior is to compare 
#962 (at Schoolhouse Pond) with his brother #960 (at Oxbow Lake). As Stan 
Arnold mentioned in his posting, he was able to take a picture of #962 on the 
sidewalk from 5 feet away. #962 is copying the behavior of the geese and 
ducks who are fed by people from the shore and come right up to the sidewalk 
to pose. #960 on the other hand, rules his environs and wouldn't think of 
giving a photographer the chance of capturing his image any closer than from 
the middle of his lake.
 
Marcy Stutzman
Russett, MD