Hitherto treated as a race of A. novaehollandiae, but differs on account of much smaller size than other taxa (score at least 2); permanent retention of and distinctive level of barred underparts in male (2); and, according to published material#R and on basis of smallish and often damaged or moulting sample in NHMUK, more pointed wing shape (at least 1); then, compared with nearest-neighbour (a) griseogularis, lack of grey throat (2) and lack of pale brownish hindneck (2) (total 9), or, compared with nearest-neighbour (b) hiogaster, much paler grey cheek (2) and rust-colour of barred underparts paler (1), although hiogaster has continuous strong rufous underparts (total at least 8). Monotypic.
W & C Lesser Sundas (Sumbawa E to Alor).
Food and feeding
Status and conservation
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