The Prince George's Audubon society has a regular walk at Govenor Bridge
Natural Area.  This usually-well-attended walk is lead by Bill Sefton
and starts at 7:30 on the third Saturday of every month.  Today (May 15,
2010), we tallied about 60 species including 

-- a female-plumaged Slate-colored Junco (I believe this is my first
record for May in the county).  It was along the road that heads uphill
from the parking lot.  After cooing about this find, I was told there
are four still coming to a feeder in Laurel.  How common are juncos here
in May?

-- a singing ALDER Flycatcher to the north of the path between the ponds
and the boat launch.

And, of course, what trip this time of year is complete without
warblers?  About a dozen species nest in or adjacent to the park.
Today's migrants included several Magnolias, Black-throated Blue,
Blackpoll, Canada and Wilson's.  My impression is that most migrants
tend to concentrate early in the morning either at the south-west end of
the lake or along the sunny edge north of the ponds.

Also of note.  I took a few hours each of the last two mornings to
search for migrants around Greenbelt.   I'm happy to report that both
mornings I heard a Hooded Warbler singing in Greenbelt Park.  Formerly
abundant in this park, I thought they were extirpated.  Highlights from
yesterday were about a dozen Catharus thrushes -- one Veery, about 4
Swainson's and the rest were silent and seen too poorly to name.  Also,
a flock of 50 to 100 warblers descended into the treetops; most were
silent and remained unidentified in the poor light but during the next
half-hour I identified 9 species of migrant warblers in the area--
Chestnut-sided, Magnolia, Black-throated Blue, Myrtle, Black-throated
Green, Blackburnian, Bay-breasted, Blackpoll and Canada.  Thursday's
highlight was a Loon on Lake Artemesia that took time off from preening
to wail at a Bald Eagle being dive-bombed by a Red-Shouldered Hawk just
overhead.

Dave
-- 
David Mozurkewich
Seabrook, PG MD