The BOBOLINKS reported on MDOSPREY a few days ago were easy 
to find this afternoon near the Beltsville water treatment 
plant in PG County (my GPS indicated that the spot was 
around 7007 Beaver Dam Rd, about 50 ft east of the 
intersection with Sheep Rd).  A nice flock of 50 or so males 
and females either chattering in the treetops or foraging in 
the tall grasses on the opposite side of the road from the 
plant.  Scope recommended but not essential.  As a bonus, 
there were 2 EASTERN MEADOWLARKS among them as well, one 
singing loudly.  Also plenty of swallows (I found TREE and 
BARN but didn't search too carefully; I only had 20 mins).

Enjoy,

D

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