Reddish chesnut plumage of male makes confusion possible only with very similar but allopatric male i, which is darker, with distinct narrow black bars on tail. Female has black and UpW black with small buff spots, resembles females of R.forbesi and R.mayri but has spotted upper mantle and lacks blackish barring on UnP. Subadult male has grey base to black bill, and dark wine-brown legs and feet, juvenile not described. Voice: sharp “krill” or “keow” often repeated many times, sometimes more squeaky. Duetting recorded, when calls may be more rapid and sharper, “kee” or “kek”.