Sometimes placed in Hoplopterus or Lobivanellus. Race atronuchalis distinctive#R, with continuous black collar, isolating the white ear-coverts (3); and narrow white line between black on nape and brown of mantle, not always clearly visible or developed on specimens (1); zone of intergradation could add a score of 1 or 2; further information required. Apart from atronuchalis, differences between races mostly clinal, involving depth of gloss, coloration of upperparts and size. Name atronuchalis is a junior synonym of atrogularis, but latter not used since 19th century and thus a nomen oblitum#R. Four subspecies normally recognized.
Food and feeding
Status and conservation
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