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.
Mittermeier, J.C., Cottee-Jones, H.E.W., Purba, E.C., Ashuri, N.M., Hesdianti, E. & Supriatna, J. 2013. A survey of the avifauna of Obi island, North Moluccas, Indonesia. Forktail 29: 128-137.
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.
Search for photos and videos, and hear sounds of this species from the Macaulay Library
Recommended citation
BirdLife International (2022) Species factsheet: Corvus validus. Downloaded from
http://www.birdlife.org on 07/07/2022.
Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 07/07/2022.