Yesterday afternoon, May 30, I found a singing male Black-throated Blue
Warbler at the Jug Bay section of Patuxent River Park, Prince George's
County.  This morning after the thunderstorms, there were two Blackpolls
(one singing male, one female) just upstream at Mount Calvert and
perhaps as many as three Spotted Sandpipers.  

The only other significant (though expected) bird seen in the adjacent
marshes this weekend were four (4) Least Bitterns.

-- 
David Mozurkewich
Seabrook, PG MD