They are often difficult to photograph or get a good look at, though, even when common. Soras are small, generally shy rails that are always present in the marshes and edges of impoundments from about October through March. Their descending whinny call is heard frequently, especially towards dusk. The margins of the canal south of the dike bordering Pool 1 is one of the better places to look for them on late fall or winter afternoons. They frequently flick the white tail when foraging, which often alerts a careful observer to their presence.
King rails are present year-round, and breed on the refuge.