Probably closely related to D. cuprea, D. badia and D. cineracea. Subspecies williami moderately distinctive, while sasakensis more notably so, differing from williami in pattern of crown (3), cinnamon vs chestnut undertail-coverts (2), and slightly blacker wings and back (1); work to establish other differences clearly important. Three subspecies recognized.
Food and feeding
Status and conservation
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