Family: Laniidae (Shrikes)

Authority: Barboza du Bocage, 1891

Red List Category

Criteria: C2a(ii)

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Justification of Red List category
This species qualifies as Critically Endangered because it is likely to have an extremely small population with all individuals found in one very small area of primary forest which, although it is not threatened, remains effectively unprotected and might be vulnerable to alteration in the future. Introduced predators could also potentially be impacting the population. 

BirdLife Species Guardian: SPEA (Portugal)

Population size: 50-249 mature individuals

Population trend: decreasing

Extent of occurrence (breeding/resident): 190 km²

Country endemic: yes

Attributes
Land-mass type - oceanic island
Realm - Afrotropical
IUCN System - Terrestrial