We've all seen sandpipers foraging busily on mudflats or at the ocean's edge. But this Lesser Yellowlegs often carols from the top of a tall conifer in its nesting territory in Alaska. The name "sandpiper" actually comes from the voices of these birds, rather than from their long-billed probing in the sand. While the name refers in particular to the birds' short "piped" -- or whistled -- calls, a number of sandpipers are surprisingly good singers. Learn more at BirdNote.org.