Black-eared cuckoo | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Cuculiformes |
Family: | Cuculidae |
Genus: | Chalcites |
Species: | C. osculans |
Binomial name | |
Chalcites osculans Gould, 1847 | |
Synonyms | |
Chalcites osculans |
The black-eared cuckoo (Chalcites osculans) is a species of cuckoo in the family Cuculidae. Found across Australia, it migrates to eastern Indonesia and southern New Guinea. They are usually observed by themselves or in a pair [2] as they don't raise their own young, [3] rather they leave eggs in another species nest to be raised by host. [4] This species was formerly placed in the genus Chrysococcyx .
Adult weight on average 30 grams (1.1 oz) [2] and are 19 to 20 cm (7.5 to 7.9 in) long, [5] with dull greyish-brown back with distinctive black eye-stripe [6] from the bill to the neck. [7] Rump is pale white and breasts area is pale salmon in colour. [8] Feet and legs are black, eyes are brown, bill is black [6] tail is grey/brown on top, with white tips, while underneath the tail is cream with brownish bars. [6] What distinguishes it from other small sized cuckoo species in Australia is that it doesn't have a metallic coloured feathers on its back. [9] Juveniles are duller in colour with a more brown eye-stripe. [5]
Chicks will give a chirp, [10] while in adults a descending feeeuw [5] or pee-o-weer [8] call in a lower mournful [5] tone than the Horsfield's bronze cuckoo, [10] which may be a singular or repeated. [5] During courtship a call of pee-o-wit may be also heard. [10] Males are often are observed calling from high branches but can still be found on lower branches [3]
Common in most areas of Australia except wet coastal forested areas, [11] basically inland side of great dividing range in Victoria, New South Wales and Queensland. Vagrants found in Tasmania. [11] [12] Breeds in southern Australia below 23rd parallel south [11] some birds will stay in southern Australia during winter, while many will migrate to Northern Australia and further north into Indonesia and PNG, [12]
It is found in dry open forests, [5] scrublands, mallee, mulga, lignum, saltbush and riverside thickets. [11] [12] They prefers to fly direct between low trees and shrubs, rather than large trees, and are rare in subhumid areas. [11]
They feed on beetles, diptera, hemiptera, insects, sandflies [11] and have been observed eating hairy caterpillars. [6] Majority of food is obtained on the ground but they have been observed foraging in trees and shrubs. [3]
Breeding season varies depending on rain and location in Australia, generally the drier inland starts earlier in the year. In the west breeding starts earlier in the year around June, while in the east it can be later in August, with season finishing in October in the west and December in the east. [10] During courtship, females and males will call to each other, with females starting loud and then quieting down as males approach, males will feed females during courtship. [10]
As a brood parasitic species, they lay one [13] dark brown egg in enclosed or domed shaped nests of passerine [14] bird species. In particular studies have shown it prefers to target speckled warbler and redthroat birds. [15] Eggs have also been found in nests of fieldwrens, thornbills, scrubwrens and heathwrens [16]
Often a female black-eared cuckoo will remove one host eggs when replacing it with its own. [3] These eggs are coloured and sized to mimic the hosts eggs, [17] often the eggs are so well mimicked, that they can only be identified apart by rubbing the egg to remove the brown pigmentation. [15] Therefore, hatchings are raised by host species, [3] with speckled warblers having been observed feeding black-eared cuckoo chicks. [18] After at least 18-day, the chick will leave its hosts nest. [3]
Cuckoos are birds in the Cuculidae family, the sole taxon in the order Cuculiformes. The cuckoo family includes the common or European cuckoo, roadrunners, koels, malkohas, couas, coucals, and anis. The coucals and anis are sometimes separated as distinct families, the Centropodidae and Crotophagidae, respectively. The cuckoo order Cuculiformes is one of three that make up the Otidimorphae, the other two being the turacos and the bustards. The family Cuculidae contains 150 species, which are divided into 33 genera.
The cuckoo, common cuckoo, European cuckoo or Eurasian cuckoo is a member of the cuckoo order of birds, Cuculiformes, which includes the roadrunners, the anis and the coucals.
Brood parasitism is a subclass of parasitism and phenomenon and behavioural pattern of animals that rely on others to raise their young. The strategy appears among birds, insects and fish. The brood parasite manipulates a host, either of the same or of another species, to raise its young as if it were its own, usually using egg mimicry, with eggs that resemble the host's. The strategy involves a form of aggressive mimicry called Kirbyan mimicry.
Cuculus saturatus, better well known as the Himalayan cuckoo or Oriental cuckoo, is a brooding parasitic bird that is part of the Cuculidae family. The species breeds from the Himalayas eastward to southern China and Taiwan. It migrates to southeast Asia and the Greater Sunda Islands for the winter.
The weebill is a species of bird in the family Acanthizidae. It is an insectivorous passerine that is found throughout mainland Australia. At 8 to 9 cm long, it is Australia's smallest bird. It was originally described by John Gould in 1838, and four subspecies are recognised. The weebill's plumage is nondescript, with olive-grey upperparts and paler, more yellowish underparts. It grades from more brownish plumage in the southern regions of Australia to more yellow in tropical areas.
The true koels, Eudynamys, are a genus of cuckoos from Asia, Australia and the Pacific. They are large sexually dimorphic cuckoos that eat fruits and insects and have loud distinctive calls. They are brood parasites, laying their eggs in the nests of other species.
The little grassbird is a species of Old World warbler in the family Locustellidae. It is found in Australia and in West Papua, Indonesia. These sexually monomorphic birds are found in reed beds, rushes, lignum swamps and salt marshes of Southeastern Australia.
The pipipi, also known as brown creeper, New Zealand creeper or New Zealand titmouse, is a small passerine bird endemic to the South Island of New Zealand. They are specialist insectivores, gleaning insects from branches and leaves. They have strong legs and toes for hanging upside down while feeding.
Horsfield's bronze cuckoo is a small cuckoo in the family Cuculidae. Its size averages 22g and is distinguished by its green and bronze iridescent colouring on its back and incomplete brown barring from neck to tail. Horsfield's bronze cuckoo can be destiguished from other bronze cuckoos by its white eyebrow and brown eye stripe. The Horsfield's bronze cuckoo is common throughout Australia preferring the drier open woodlands away from forested areas. This species was formerly placed in the genus Chrysococcyx.
The shining bronze cuckoo is a species of cuckoo in the family Cuculidae, found in Australia, Indonesia, New Caledonia, New Zealand, Papua New Guinea, Solomon Islands, and Vanuatu. It was formerly placed in the genus Chrysococcyx.
The violet cuckoo is a species of cuckoo in the family Cuculidae.
The pallid cuckoo is a species of cuckoo in the family Cuculidae. It is the only species placed in the genus Heteroscenes. It is found in Australia, with some migration to the islands of Timor and Papua New Guinea. It is between 28 and 33 cm in size, with distinctive markings such as a dark bill, a dark eye with a gold eye-ring and olive grey feet which differentiate it from other cuckoos. The pallid cuckoo is similar in appearance to the oriental cuckoo, with barred immature pallid cuckoos being often mistaken for oriental cuckoos.
The channel-billed cuckoo is a species of cuckoo in the family Cuculidae. It is monotypic within the genus Scythrops. The species is the largest brood parasite in the world, and the largest cuckoo.
The striated grasswren is a small, cryptically coloured ground-dwelling species of wren-like bird in the family Maluridae, endemic to Australia. It occupies a large discontinuous range across arid and semi-arid areas of western, central and southern Australia where it is associated with spinifex (Triodia) grass.
The rufous fieldwren also known as the desert wren or sandplain wren is a species of insectivorous bird in the family Acanthizidae, endemic to Australia.
The speckled warbler is a species of bird in the family Acanthizidae. It is endemic to eastern Australia. Its natural habitat is temperate forests.
The Chatham Islands gerygone, also known as the Chatham gerygone or Chatham Island warbler, is a species of bird in the family Acanthizidae. It is endemic to the Chatham Islands. The Chatham Islands gerygone is larger than and differs in plumage from the related grey warbler of mainland New Zealand. Both warblers were discovered and named by G. R. Gray in 1845. The grey and Chatham Island warblers are the only two members of the Australasian family Acanthizidae found in New Zealand.
The redthroat is a small, mostly ground-dwelling species of bird in the family Acanthizidae. It is endemic to Australia, occurring mostly in arid and semi-arid areas containing acacia and chenopod shrublands. The species has a distinctive red throat patch and is able to mimic the calls of numerous other bird species.
Egg tossing or egg destruction is a behavior observed in some species of birds where one individual removes an egg from the communal nest. This is related to infanticide, where parents kill their own or other's offspring. Egg tossing is observed in avian species, most commonly females, who are involved with cooperative breeding or brood parasitism. Among colonial non-co-nesting birds, egg-tossing is observed to be performed by an individual of the same species, and, in the case of brood parasites, this behavior is done by either the same or different species. The behavior of egg tossing offers its advantages and disadvantages to both the actor and recipient.
Chrysococcyx is a genus of Australasian cuckoos in the family Cuculidae. They were formerly placed in the genus Chrysococcyx.