Nest
Large, open, composed of twigs and sticks, lined with rootlets, in the outer forked branches of a tall tree.
Eggs (Guide)
Usually 3; light brown with blotches and freckles of darker brown; oval; about 42 x 30 mm. Incubation: about 21 days; by female.
Young
Fledge in about 30 days.
Subspecies
Forms a superspecies with Black Currawong (Strepera fuliginosa) and sometimes considered conspecific.
Subspecies nebulosa intergrades with nominate in north (from Mudgee south to Eden, in south-eastern New South Wales) and with ashbyi in south-west (western Victoria), possibly completely overlapping latter subspecies (especially in Grampian Range), and continued existence of "pure" ashbyi individuals uncertain.
The following 6 subspecies are recognised:
graculina (White, 1790) - Eastern Queensland (from Clarke Range, just south of Bowen) Southern, inland to western slopes of Great Dividing Range, to Blue Mts and south-eastern New South Wales.
magnirostris White, HL, 1923 - Eastern Cape York Peninsula south to about Laura (northern Queensland), in north-eastern Australia.
robinsoni Mathews, 1912 - Coastal ranges of northern Queensland on eastern slopes of Great Dividing Range (from Cooktown south to Ingham).
nebulosa Schodde & Mason, IJ, 1999 - South-eastern New South Wales tablelands and eastern Victoria.
ashbyi Mathews, 1913 - Southern half of western Victoria (especially in Grampian Range) west of line between Ballarat and Cape Otway.
crissalis Sharpe, 1877 - Lord Howe I and offshore islands (including Admiralty Group).
The Field Guide to the Birds of Australia Pizzey, G., and Knight, E., 1997, Angus & Robertson, Sydney ISBN 0 207 19691 5
Field Guide to Australian Birds Morecombe, M., 2000, Steve Parish Publishing Pty Ltd. ISBN 1 876282 10 X
Field Guide to the Birds of Australia Simpson, K., and Day, N., 1999, 6th Edition, Viking ISBN 0 670 87918 5
Reader's Digest Complete Book of Australian Birds 1988, 2nd Edition, Reader's Digest ISBN 0 949819 99 9
What Bird is That? 1984, Revised Edition, Angus & Robertson, Sydney ISBN 0 207 14846 5
Handbook of Australian, New Zealand & Antarctic Birds 1990 - , Oxford University Press, Melbourne ISBN 0 19 553244 9
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