canvasback ducks raft the upper mississippi nwr early spring

navigate by keyword : area birds blufflands canvasback driftless ducks early extend feed flocks foreground iowa large mississippi nwr raft rest spring stopped thousands upper

Canvasback ducks raft in the Upper Mississippi NWR in early spring

Large flocks of Canvasback Ducks extend from the foreground across the upper Mississippi to the blufflands of the driftless area in Iowa. Thousands of birds stopped to rest and feed during spring.