Family Monarch-flycatchers (Monarchidae)

Near Threatened

White-breasted Monarch (Symposiachrus menckei)


French: Monarque des Saint-Matthias German: Weißbrustmonarch Spanish: Monarca de San Matías
Other common names: Mussau Monarch

Monarcha menckei


, 1902,

Mussau Island, St Matthias Group




Mussau I, in St Matthias Group (N Bismarck Archipelago).

Descriptive notes

14·5–15·5 cm. A small pied monarch, mostly white with blackish face, wings and tail. Forehead and lores to around eye, chin and throat are black, rest of head and face... read more


Loud harsh scolding notes and long quavering whistle, most similar to vocalizations of S.... read more


Forest, including secondary and degraded forest areas and regrowth areas along sides of roads and... read more

Food and feeding

Few data. Food mainly small invertebrates and larvae. Actively forages in undergrowth and lower storey of forest trees; flicks wings... read more


Begging juveniles recorded in Jul. No other information.



Status and conservation

Not globally threatened. Currently considered Near-threatened. Restricted-range species: present in St Matthias Islands EBA. Common. Potentially at risk as its tiny global... read more

Recommended citation

Clement, P. (2019). White-breasted Monarch (Symposiachrus menckei). 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 20 January 2019).