Black Currawong
Strepera fuliginosa
The black currawong is about 50 cm (20 in) long with an 80 cm (31 in) wingspan. The male is somewhat larger and heavier than the female; males of the nominate subspecies average 405 g (14.3 oz) to females' 340 g (12 oz). Male wings average around 27 cm (11 in) and tails 19 cm (7.5 in), while female wings average 25.8 cm (10.2 in) and tails 18.5 cm (7.3 in). Data for the two island subspecies is limited, but males of subspecies colei have been measured at 360 and 398 g (12.7 and 14.0 oz) with 26 cm (10 in) wings on average, and a female at 335 g (11.8 oz) with a 24 cm (9. Voice: The black currawong is a loud and vocal species, and makes a variety of calls. Its main call is markedly different from the pied or grey currawongs and has been described as a combination of alternating kar and wheek sounds, killok killok, or even akin to part song and part human laughter. Although often noisy when flying in flocks, it can be silent when seeking prey or thieving food.
ID text from Wikipedia, CC BY-SA 4.0
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
Where you might meet both
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Black Currawong and Grey Currawong.