Australian Raven (Corvus coronoides coronoides) 26 September 2019, Royal National Park, Sutherland Shire, New South Wales, Australia
Australian Raven (
Corvus coronoides)
This species has adapted well to civilization and has expanded its range into urban settlements in recent years. The shaggy neck feathers or throat hackles form a distinct bulge which helps distinguish this species from the similar Little Raven, Forest Raven and Torresian Crow. Note also the long wings and tail of this species. Two subspecies are recognized with this being the larger nominate race with longer throat hackles. Surprisingly the two subspecies are strongly divergent genetically and have been proposed to qualify as separate species. It has been suggested that the ancestral Australasian corvid assemblage may be basal to the entire worldwide Passerine radiation. Canon PowerShot SX60 HS.

References:

Debus, S. (2019). Australian Raven (Corvus coronoides). 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 https://www.hbw.com/node/60799 on 25 December 2019).

Jønsson, K.A., Fabre, P.H. & Irestedt, M. (2012) Brains, tools, innovation and biogeography in crows and ravens. BMC Evol. Biol. 12: 72. doi: 10.1186/1471-2148-12-72.

Madge, S. & Burn, H. (1994) Crows and Jays: A Guide to the Crows, Jays and Magpies of the World. Houghton Mifflin, Boston.

Sibley, C. & Ahlquist, J. (1991): Phylogeny and Classification of Birds: A Study in Molecular Evolution. Yale University Press, New Haven, Connecticut.
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