Family Australasian Robins (Petroicidae)

Near Threatened

New Britain Flyrobin (Monachella coultasi)


French: Miro de Nouvelle-Bretagne German: Bismarckuferschnäpper Spanish: Petroica torrentera de Nueva Bretaña

Monachella muelleriana coultasi


, 1934,

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.

What do (1) and (2) mean? Learn more about the scoring system.

New Britain, in Bismarck Archipelago.

Descriptive notes

14–15 cm. Adult has crown brownish black, indistinct narrow grey hindcollar (rarely visible in field), grey upperparts including rump and uppertail-coverts; large white patch... read more


Little information. A dry rattle consisting of several identical notes reported. Study required.


Fast-flowing open rivers and streams with protruding boulders offering plenty of vegetation-free... read more

Food and feeding

Insects. Prey captured in aerial sallies from exposed rock, riverbed, log or overhanging branch, or from horizontal branch in nearby... read more


No information. Breeding ecology presumably similar to that of M. muelleriana.


Presumably sedentary.

Status and conservation

Not globally threatened. Currently considered Near Threatened. Restricted-range species: confined to a single island within the New Britain and New Ireland EBA. Very local,... read more

Recommended citation

del Hoyo, J., Collar, N. & Christie, D.A. (2019). New Britain Flyrobin (Monachella coultasi). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from on 25 May 2019).