This species has been uplisted to Near Threatened on the basis that projected rates of forest loss in its range are suspected to be driving a moderately rapid population decline.
Sibley, C. G.; Monroe, B. L. 1990. Distribution and taxonomy of birds of the world. Yale University Press, New Haven, USA.
del Hoyo, J.; Elliott, A.; Christie, D. 2009. Handbook of the Birds of the World, vol. 14: Bush-shrikes to Old World Sparrows. Lynx Edicions, Barcelona, Spain.
IUCN. 2012. IUCN Red List of Threatened Species (ver. 2012.1). Available at: http://www.iucnredlist.org. (Accessed: 19 June 2012).
Madge, S.; Burn, H. 1993. Crows and jays: a guide to the crows, jays and magpies of the world. Helm Information, Robertsbridge, U.K.
Vetter, J. 2009. Impacts of Deforestation on the Conservation Status of Endemic Birds in the North Maluku Endemic Bird Area from 1990-2003. Nicholas School of the Environment, Duke University.
Further web sources of information
Explore HBW Alive for further information on this species
Text account compilers
Butchart, S., Ekstrom, J., Symes, A. & Taylor, J.
BirdLife International (2015) Species factsheet: Corvus validus. Downloaded from http://www.birdlife.org on 19/04/2015. Recommended citation for factsheets for more than one species: BirdLife International (2015) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 19/04/2015.
This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.
To provide new information to update this factsheet or to correct any errors, please email BirdLife
To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.
|Current IUCN Red List category||Near Threatened|
|Family||Corvidae (Crows and jays)|
|Species name author||Bonaparte, 1851|
|Population size||Unknown mature individuals|
|Distribution size (breeding/resident)||-|
|Links to further information|
|- Additional Information on this species|