Jim Green and I got out before work this morning for a few hours of birding.

Riley's Lock (Seneca) highlights - 6 AM

Common Loon 1
Horned Grebe 6 (one in breeding plumage)
Pied-billed Grebe
DC Cormorant
Tundra Swan 10
LONG-TAILED DUCK 5
Bufflehead
Blue-winged Teal 2
Scaup sp
Red-breasted Merganser
Common Merganser
American Coot
Herring,GBB and Ring-billed Gulls
Tree Swallow
Eastern Phoebe

Add'l species found by Jim after 8 AM
Rough-winged Swallow 3
Purple Martin 1

At Hughes Hollow mostly same as reported by others over past week.  
There seemed to be an unusally high number of GB Herons (12+, 5 or 6 
sitting in same tree). Good looks at Blue-winged Teal, Gadwalls, and 
Wood Ducks in flight and a great look at a Rusty Blackbird from about 5 
feet feeding along the dike edge.  Also 5/6 snipe. No sign of the 3 male 
Shovelers this morning.  It was good to run into Paul Woodward, who was 
arriving just as we were leaving.  Maybe he will post more details later 
today.

Potomac R. at Sycamore Landing
GBB Gulls 4
Red-breasted Mergansers

Good birding,

Andy Martin
Gaithersburg