I photographed a small flock of what I think are Semipalmated Sandpipers (Calidris pusilla), but I am still hoping for someone to confirm the identification.
Semipalmated Sandpiper, Caladesi Island State Park, Dunedin, Florida, USA, June 30, 2012
Semipalmated Sandpiper, Caladesi Island State Park, Dunedin, Florida, USA, June 30, 2012
Semipalmated Sandpiper, Caladesi Island State Park, Dunedin, Florida, USA, June 30, 2012
Semipalmated Sandpiper, Caladesi Island State Park, Dunedin, Florida, USA, June 30, 2012
These are all Sanderlings, rather than Semipalmated Sandpipers.