Monachella muelleriana coultasi
Andomgi River, Wide Bay, New Britain; altitude 2500 feet [c. 760 m].
Has been suggested for treatment as a full species#R, and this idea here supported, based on grey vs white hindcollar and (much more notably) rump (3); grey vs white breast to upper belly and also undertail-coverts (2); shade paler brown crown, wings and tail (1); slightly shorter wing in male (mean 92 mm, n=3, vs 95.8, n=10) (allow 1); reportedly different voice#R (allow 2). Monotypic.
New Britain, in Bismarck Archipelago.
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