Grey Currawong
Strepera versicolor
A larger and more slender bird than its more common relative the pied currawong, the adult grey currawong ranges from 44 to 57 cm (17 to 22 in) in length, with an average of around 52 cm (20 in); the wingspan varies from 72 to 85 cm (28 to 33 in), averaging around 78 cm (31 in), with an average weight of around 350 g (12 oz). Adults of the Tasmanian subspecies average around 440 g (16 oz). The male is on average slightly larger than the female, but the size and weight ranges mostly overlap. Voice: Unlike that of the pied currawong, the grey currawong's call does not sound like its name. The grey currawong is best known for making a sound variously transcribed as p'rink, clink, cling, ker-link or tullock, either in flight or when gathered in any numbers.
ID text from Wikipedia, CC BY-SA 4.0
Pied Currawong
Strepera graculina
The pied currawong is generally a black bird with white in the wing, undertail coverts, the base of the tail and most visibly, the tip of the tail. It has yellow eyes. Adult birds are 44–50 cm (17–20 in) in length, with an average of around 48 cm (19 in); the wingspan varies from 56 to 77 cm (22 to 30 in), averaging around 69 cm (27 in). Adult males average around 320 g (11 oz), females 280 g (10 oz). The wings are long and broad. The long and heavy bill is about one and a half times as long as the head and is hooked at the end. Voice: Pied currawongs are vocal birds, calling when in flight and at all times of the day. They are noisier early in the morning and in the evening before roosting, as well as before rain. The loud distinctive call has been translated as Kadow-Kadang or Curra-wong, akin to a croak. They also have a loud, high-pitched, wolf-like whistle, transcribed as Wheeo.
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
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