On Sunday I checked three ponds in northern Frederick County with the following birds seen: Harney Road: Great Blue Heron 1 Killdeer 1 Bullfrog Road: Wood Duck 1 Killdeer 60 Solitary Sandpiper 5 Spotted Sandpiper 13 Least Sandpiper 4 Pectoral Sandpiper 27 Willow Road: Wood Duck 1 Mallard 11 Killdeer 1 Solitary Sandpiper 6 Spotted Sandpiper 2 Bob Ringler