Particularly noteworthy are the pied butcherbird, the pied currawong and the Australian magpie. The pied currawong is a culprit in Sydney. Their feeding habits vary from nectar sucking (woodswallows) to predation on small birds (pied currawong). Seed is fertile for regeneration from the droppings of the pied currawong. However, it can be encountered in mixed-species flocks with the pied currawong. The grey currawong is an omnivorous and opportunistic feeder. The term "currawong" itself is derived from the call of the pied currawong. The onomatopoeic term "currawong" itself is derived from the bird's call. The eggs closely resemble those of the currawong hosts. Together with the larger grey currawong ("S. versicolor"), they form the genus "Strepera". The black currawong is about long with an wingspan. Several subspecies of the grey currawong are fairly distinctive and described on that species page. Currawong species have predominantly dark plumage and heavier bills. Nearby Currawong Beach is sometimes called Little Mackerel Beach.