Tropicoperdix charltoni [sic] tonkinensis
Bac Kan, north-eastern Tonkin.
Sometimes placed in genus Tropicoperdix. Formerly treated as a subspecies of A. chloropus, but differs from all taxa grouped under that species in its lack of tawny-buff band around lower throat/upper breast (3); upper breast mid-chestnut vs more extensive breast to neck-sides mid-brown (3); more extensive large spotting than on any other taxa (none in chloropus and olivacea, hence score 3; sometimes significant but never so large in merlini and vivida, hence score 1) (1). It shares with forms charltonii, atjenensis and graydoni a white lower throat (with black spots) and plain chestnut upper breast, but differs from the first two in having ear-coverts tawny-stained white with black spots vs plain tawny (plain dirty white on graydoni) (2); no black upper necklace from lower throat around below ear-coverts (3); distribution of large blackish spots on lower breast, mid-belly and flanks (2); smaller chestnut upper breast patch, not extending onto neck-sides (ns); and less distinctly barred lower breast (ns). It differs from A. graydoni in its black-spotted tawny-stained white vs plain dirty white ear-coverts (2); greyish-brown lower breast feathers more narrowly, evenly and distinctly barred with buff vs much darker, richer chestnut on upper breast with black bars (3); buffy-tan belly with large dark spotting vs plain belly with dark rufous and rufous-chestnut coloration (2). Monotypic.
Food and feeding
Status and conservation
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