Rallus maculatus; Print; Ridgway's rail (Rallus obsoletus). Rallus is a genus of wetland birds of the rail family. Sometimes; the genera Lewinia and Gallirallus are included in it. Six of the species are found in the Americas; and the three species found in Eurasia; Africa and Madagascar are very closely related to each other; suggesting they are descended from a single invasion of a New World ancestor.; 1700-1880