Family Crows (Corvidae)

Least Concern

Forest Raven (Corvus tasmanicus)


Taxonomy

French: Corbeau de Tasmanie German: Tasmankrähe Spanish: Cuervo de Tasmania
Taxonomy:

Corvus marianae tasmanicus

Mathews

, 1912,

Tasmania

.

Formerly considered a race of C. coronoides; one genetic analysis#R suggests the two may indeed be conspecific. Race boreus (sometimes referred to erroneously as novaanglica) has been treated as a full species#R, though without supporting evidence; near-identical vocalizations of the two taxa indicate that current treatment is appropriate, and this is corroborated by genetic data#R. Two subspecies recognized.

Subspecies and Distribution
  • C. t. boreus I. Rowley, 1970 – NE New South Wales, in E Australia.
  • C. t. tasmanicus Mathews, 1912 – coast of extreme SE Australia, islands in Bass Strait and Tasmania.
  • Descriptive notes

    52–54 cm; male 500–800 g and female 535–755 g (nominate), male 550–740 g and female 600–710 g (boreus). Large, long-legged crow with... read more

    Voice

    Series of deep (bass), slow and guttural caws, given with throat hackles noticeably fanned and tail... read more

    Habitat

    All terrestrial habitat types within range, from subalpine (1500 m) to littoral, including dense... read more

    Food and feeding

    Omnivorous predator and scavenger; strongly carnivorous. Feeds mainly on invertebrates, small birds, eggs, nestlings, small mammals and... read more

    Breeding

    Laying mainly late winter to spring, mostly Jul–Sept, but extending to early summer (mid-Dec) in Tasmania. Monogamous. Solitary... read more

    Movements

    Breeding pairs sedentary within large home range. Juveniles, immatures and non-breeding adults form... read more

    Status and conservation

    Not globally threatened. Abundant and widespread in Tasmania. Populations in coastal SE mainland Australia small and fragmented. N race boreus considered "Near-... read more

    Recommended citation

    Debus, S. (2017). Forest Raven (Corvus tasmanicus). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from http://www.hbw.com/node/60801 on 20 September 2017).