Sharp-tailed Sandpiper, Calidris acuminate (Knuckey's Lagoon, Darwin, NT)Sharp-tailed Sandpiper, Calidris acuminate (Bremer Bay, WA)Sharp-tailed Sandpiper, Calidris acuminate (Bremer Bay, WA)Sharp-tailed Sandpiper, Calidris acuminate (Bremer Bay, WA)Sharp-tailed Sandpiper, Calidris acuminate (Bremer Bay, WA)Sharp-tailed Sandpiper, Calidris acuminate (Bremer Bay, WA)Sharp-tailed Sandpiper, Calidris acuminate (Bremer Bay, WA)