Black-chinned Monarch Symposiachrus boanensis

Family: Monarchidae (Monarch-flycatchers)

Authority: (van Bemmel, 1939)

Red List Category

Criteria: B1ab(i,ii,iii,iv,v); C2a(ii)

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Justification of Red List category
Survey work has judged this species to have an extremely small population which, given the reported continuation of habitat loss on the one island where it occurs, results in its classification as Critically Endangered.

Population size: 70-130

Population trend: Decreasing

Extent of occurrence (breeding/resident): 14 km2

Country endemic: Yes

Land-mass type - oceanic island
Realm - Oceanic
IUCN Ecosystem -- Terrestrial biome

Recommended citation
BirdLife International (2023) Species factsheet: Symposiachrus boanensis. Downloaded from on 23/09/2023. Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from on 23/09/2023.