
Australia is home to a variety of cuckoo species, each with its own unique call. From the Pallid Cuckoo's ascending whistle to the Fan-tailed Cuckoo's descending trill, these birds are known for their distinctive sounds. The Channel-billed Cuckoo, the world's largest cuckoo species, has a loud and raucous call that some compare to the sounds of the Jurassic period. With their nocturnal habits, distinct calls, and brood parasitism, Australian cuckoos have adapted to their environment and play an essential role in the ecosystem. They control insect populations, disperse seeds, and impact local bird populations through their parasitic nesting habits.
| Characteristics | Values |
|---|---|
| Bird name | Fan-tailed Cuckoo |
| Scientific name | Cacomantis flabelliformis |
| Habitat | Treed but more open territory in the south and east of Australia |
| Diet | Insects |
| Call | "Peeeer" descending trill, soft mournful "p-whee" whistles, loud shrill "chireee" calls |
| Breeding season | Spring and summer |
| Other Australian cuckoo species | Pallid Cuckoo, Channel-billed Cuckoo, Eastern Koel, Pheasant Coucal, Horsfield's Bronze-Cuckoo, Black-eared Cuckoo, Little Bronze-Cuckoo, Brush Cuckoo |
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What You'll Learn

The Fan-tailed Cuckoo's descending trill
The Fan-tailed Cuckoo (Cacomantis flabelliformis) is a species of cuckoo found in Australia, Fiji, New Caledonia, New Zealand, New Guinea, the Solomon Islands, and Vanuatu. In Australia, they are found in the eastern region, from Cape York to southern South Australia, and in south-western Western Australia.
The Fan-tailed Cuckoo is a medium-sized bird, similar in size to a starling, with a distinctive appearance. It has a warm buff-coloured chest and belly, a pale front, a dark grey back, and a long, stripy tail. The bird also features a bright yellow eyering, which can be used to distinguish it from similar species such as the Brush Cuckoo and the Pallid Cuckoo.
The most distinctive feature of the Fan-tailed Cuckoo is its descending trill call, which is commonly heard during the spring and summer breeding seasons. This call is often described as a "peeeer" trill, and it is a common sound in the woodlands and forests of Australia. The male Fan-tailed Cuckoo is particularly vocal during this season, as it seeks to attract potential mates.
In addition to the descending trill, Fan-tailed Cuckoos also have other vocalizations. They make soft, mournful "p-whee" whistles when another bird is nearby and females produce loud, shrill "chireee" calls in response to males. While they are most vocal during the breeding season, these cuckoos can also be heard at other times of the year and even at night.
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The Channel-billed Cuckoo's primeval squawks
The Channel-billed Cuckoo (Scythrops novaehollandiae) is the world's largest cuckoo species, and its loud, raucous calls are a fitting match for its size. Its primeval squawks, reminiscent of the Jurassic period, are a distinctive feature of this bird. During the breeding season, these cuckoos are known to call loudly throughout the night, making their presence well-known in the forests and woodlands of northern and eastern Australia.
The call of the Channel-billed Cuckoo is described as a loud "kawk," followed by a faster and weaker "awk-awk-awk..." sequence. This call is most often given in flight, as the bird migrates south from New Guinea to Australia for breeding. Their massive, down-curved bills and grey plumage, darker on the back and wings, make them stand out. Young Channel-billed Cuckoos have a more mottled mix of buff, brown, and grey plumage.
These cuckoos are often found in tall, open forests, particularly where host species are present. They favour native figs and fruits, but their diet also includes seeds, insects, and even baby birds. The Channel-billed Cuckoo is a brood parasite, laying its eggs in the nests of other birds, such as the Australian Magpie and members of the crow family. Interestingly, their young do not evict the host's eggs or chicks from the nest but instead grow faster and demand all the food, outcompeting their nest-mates.
The Channel-billed Cuckoo's loud and unique calls have earned them the colloquial name "Storm Bird." They can sometimes be spotted in urban parks and gardens with fruiting trees, such as the Moreton Bag Figs. The primeval squawks of this cuckoo species truly stand out, making them easily recognisable to those familiar with Australia's diverse birdlife.
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The Pallid Cuckoo's ascending whistle
The Pallid Cuckoo is a widespread species found in a variety of habitats across Australia. It is known for its distinctive ascending whistle, often heard during the breeding season. This call, which is often repeated incessantly, gave rise to the name Brainfever-bird. The Pallid Cuckoo is the most widely distributed of the cuckoos and can be found in most open forests and woodlands, as well as cleared and cultivated open country across Australia.
The Pallid Cuckoo is a graceful bird characterised by long tails and unique four-toed feet. It has iridescent green and bronze plumage, which shimmers in the sunlight. Young Pallid Cuckoos are mottled with brown and buff above, with a white spot on the nape, and are streaked with grey-brown and white below. As with other species of cuckoo, the Pallid Cuckoo's call often betrays its presence long before it is seen.
The Pallid Cuckoo is a brood parasite, laying its eggs in the nests of other birds, such as honeyeaters, woodswallows, whistlers, and flycatchers. Common host species include the Willie Wagtail, Rhipidura leucophrys, and the Hooded Robin, Melanodryas cucullata. The female cuckoo removes one of the host's eggs and replaces it with one of her own, which closely resembles the host egg. The unsuspecting host hatches the cuckoo egg along with its own, and the cuckoo chick typically outgrows its 'foster' parents, who frantically search for enough food to satisfy its demands.
The Pallid Cuckoo has a preference for hairy caterpillars but will also eat other insects and their larvae. Prey is typically spotted from a low perch and pounced on, usually on the ground, though some insects are taken from foliage. The Pallid Cuckoo plays an essential role in the ecosystem by helping to control insect populations and contribute to the dispersal of seeds through its frugivorous diet.
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The Eastern Koel's nocturnal calls
The Eastern Koel, a migratory cuckoo species, is known for its loud and repetitive nocturnal calls, which have earned it the nickname "Devil Bird" among sleep-deprived Australians. This bird usually arrives in Australia from Southeast Asia, including Papua New Guinea, Indonesia, and possibly the Philippines, to breed during the spring and summer months.
The male Eastern Koel makes its presence known through a loud ascending whistle or a monotonously repeated 'koo-el' call, while the female produces a repetitive 'keek-keek-keek-keek' sound. These calls are typically heard throughout the day and well into the night, with males singing to attract females during the breeding season.
Eastern Koels are brood parasites, laying their eggs in the nests of other bird species, such as the Red Wattlebird, friarbirds, Magpie-larks, and figbirds. They are found in tall forests and are becoming increasingly common in suburban areas, particularly in cities like Sydney and Brisbane. This may be due to the abundance of ornamental plants and weeds that produce berries, as well as the proliferation of some of their host species.
The nocturnal calls of the Eastern Koel are distinctive and familiar to many Australians. While the birds are rarely seen due to their shy nature and preference for dense foliage, their loud and repetitive calls, especially during the extended breeding season, have made them well-known to sleep-deprived residents of Australia's east coast.
The Eastern Koel's breeding season usually lasts from late September to early October, but climatic conditions can cause variations. In 2022, for example, the breeding season was observed to be longer than usual, with the night calls continuing later into the year, much to the chagrin of locals.
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The Pheasant Coucal's gurgling notes
The Pheasant Coucal is the only Australian cuckoo that builds its own nest and rears its young. It is a ground-dwelling bird, living and nesting on the ground, unlike other cuckoos. It is found in the woodlands of Australia's east, north, and west, in grasslands and thickets.
The Pheasant Coucal's call is a series of gurgling notes, described as deep, resonant, and almost otherworldly. The call is often heard in the dawn chorus of Australia's wilderness, and it sounds like an "oop-oop-oop".
The Pheasant Coucal is a remarkable bird, with a distinctive appearance and behaviour that sets it apart from other Australian cuckoos. It is a large bird, measuring around 75 cm in length. Its call is also unique among Australian cuckoos, with its deep and resonant gurgling notes.
The gurgling notes of the Pheasant Coucal may serve several functions, including territorial defence, courtship, and communication with other members of its species. The deep and resonant sound of the gurgling notes may also help the bird to project its call over long distances, asserting its presence and ownership of a particular area.
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Frequently asked questions
The Pallid Cuckoo, the Fan-tailed Cuckoo, the Eastern Koel, the Channel-billed Cuckoo, the Horsfield's Bronze-Cuckoo, the Black-eared Cuckoo, the Little Bronze-Cuckoo, the Brush Cuckoo, and the Pheasant Coucal are some of the cuckoo birds found in Australia.
The Australian Cuckoo bird's call varies depending on the species. The Fan-tailed Cuckoo, for example, makes a descending trill that sounds like "peeeer". The Channel-billed Cuckoo, on the other hand, has a loud, raucous call that sounds like "kawk" followed by a rapid "awk-awk-awk". The Pallid Cuckoo is known for its distinctive ascending whistle, often heard during the breeding season.
The Channel-billed Cuckoo, the largest species of cuckoo, eats native figs, fruits, seeds, insects, and even baby birds. The Pallid Cuckoo has a preference for hairy caterpillars, but it also consumes other insects and their larvae.










































