King Rail at Clarence Cannon National Wildlife Refuge

Clarence Cannon NWR, Annada, Missouri: Clarence Cannon National Wildlife Refuge is a unit of the Mark Twain National Wildlife Refuge near Quincy, Illinois. It is located along the Mississippi River north of St. Louis. Although riverboats still ply the main channel of the Mississippi, as they did in Mark Twain’s day, the sloughs and backwaters harbor some interesting creatures, such as this king rail.