Jim, Wallace, & I were the only birders in evidence on a 
dull, overcast morning at the Rock Creek Park Maintenance 
Yard.  The birding was slow at first but it picked up around 
8:15 am.  The highlight was an OLIVE-SIDED FLYCATCHER 
hawking for insects from the bare snags at the forest edge 
on the south side of the yard.  Other highlights included 
YELLOW-THROATED VIREO (1 singing), RED-EYED VIREO (2), 
CHESTNUT-SIDED WARBLER (1 male), AMERICAN REDSTART (1 
female), BLACK-AND-WHITE WARBLER (1 female), CANADA WARBLER 
(1), BALTIMORE ORIOLE (1 bright male), and a flyover COMMON 
NIGHTHAWK.  There seemed to be a lot of pewees and Downys 
about, plus a couple HOUSE WRENS.  I may have glimpsed a 
Northern Parula.

Here's my complete eBird report:

Location name:  	Rock Creek Park
Observation type: 	Stationary Count
Observation date: 	8/23/07
Start time: 		7:35 AM
Duration: 		2 hour(s) 20 minute(s)
Number of observers: 	3

7 	Mourning Dove
1 	Common Nighthawk
10 	Chimney Swift
4 	Red-bellied Woodpecker
5 	Downy Woodpecker
1 	Northern Flicker
1 	Olive-sided Flycatcher
5 	Eastern Wood-Pewee
1 	Yellow-throated Vireo
2 	Red-eyed Vireo
1 	crow sp.
2 	Carolina Chickadee
5 	Tufted Titmouse
4 	White-breasted Nuthatch
3 	Carolina Wren
2 	House Wren
4 	Blue-gray Gnatcatcher
5 	American Robin
2 	Gray Catbird
1 	Chestnut-sided Warbler
1 	Black-and-white Warbler
1 	American Redstart
1 	Canada Warbler
5 	Northern Cardinal
1 	Common Grackle
1 	Baltimore Oriole
4 	American Goldfinch
3 	House Sparrow

Total species reported: 28

D

-- 
Derek C. Richardson, Laurel, PG County, MD
http://www.astro.umd.edu/~dcr/Archives/Photos/birds.html