July 20 shoreb obs: Upper Marboro pond: 20 Least 4 Killder 5 Solitary 1Sptted 1 Semi Sand 1 G B Heron North Beach: 9 S b Dow 10 Killdeer 8 Les Yell 5 Gr Yell 1 Pectoral 1 Western 1 Semi Sand 5 Least 2 Green Heron 1 Snowy E danny bystrak jug bay