CR
Mariana Crow Corvus kubaryi



Family: Corvidae (Crows and jays)

Authority: Reichenow, 1885

Red List Category

Criteria: A2bcde+3bcde+4bcde; B1ab(i,ii,iii,iv,v); C2a(ii)

Click here for more information about the Red List categories and criteria

Justification of Red List category
This species qualifies as Critically Endangered because surveys have shown that it is declining extremely rapidly. It now has an extremely small population and is confined to just one island, Rota, where multiple factors are driving the decline, with the additional risk of potential colonisation of the island by the brown tree-snake. 



Population size: 50-249

Population trend: Decreasing

Extent of occurrence (breeding/resident): 120 km2

Country endemic: No

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

Recommended citation
BirdLife International (2017) Species factsheet: Corvus kubaryi. Downloaded from http://www.birdlife.org on 28/07/2017. Recommended citation for factsheets for more than one species: BirdLife International (2017) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 28/07/2017.