I visited the main pond at Blue Mash Nature Trail today. The low water level has made good shorebird habitat. Many of the sandpipers were feeding actively belly-deep in the water making identification a challenge. I found the following:

Canada Goose  18
Mallard  25
Blue-winged Teal  1
Great Blue Heron  3
Semipalmated Plover  1
Killdeer  7
Spotted Sandpiper  1
Solitary Sandpiper  1
Lesser Yellowlegs  3
Semipalmated Sandpiper  2
Least Sandpiper  25
Pectoral Sandpiper  6

--
Bob Ringler 
Eldersburg MD