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Overview

Comprehensive Description

Horsfield's Bronze-Cuckoo is an olive-brown above with pale scaling and a bronze to green sheen on the back and upper tail. It has a prominent dark-brown eyestripe, with a contrasting white eyebrow stripe above, with both curving down the sides of the neck. The throat is white with fine dark mottling.The underbody is white to cream with dark-brown barring at the sides, with the bars joining in the middle on the upper breast only. The undertail is grey with brown and white barring at the tip and sides. The tail is edged rufous (orange-brown) and the undertail is rufous when spread. Juveniles are similar but duller with faint or no barring on sides of body.

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Distribution

Range

Australia and Tasmania; winters to Java.

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Distribution:


    Australia and Tasmania. Winters N to Java and irregularly beyond


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Physical Description

Size

17-18 cm. 26 g

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Diagnostic Description

Horsfield's Bronze-Cuckoo is an olive-brown above with pale scaling and a bronze to green sheen on the back and upper tail. It has a prominent dark-brown eyestripe, with a contrasting white eyebrow stripe above, with both curving down the sides of the neck. The throat is white with fine dark mottling.The underbody is white to cream with dark-brown barring at the sides, with the bars joining in the middle on the upper breast only. The undertail is grey with brown and white barring at the tip and sides. The tail is edged rufous (orange-brown) and the undertail is rufous when spread. Juveniles are similar but duller with faint or no barring on sides of body.

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Ecology

Habitat

Habitat and Ecology

Systems
  • Terrestrial
  • Marine
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It is found in many wooded habitats (such as open and dry woodland and forest) with a range of understoreys from grasses to shrubs or heath. Sometimes found near clearings and in recently logged or burnt forests. Found in farmland with some trees, orchards, vineyards and urban parks and gardens.

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Trophic Strategy

Feeds mostly on insects and their larvae, especially hairy caterpillars, although it may sometimes eat plant matter. It forages on the ground and in trees, and may sometimes feed in the air on caterpillars lowering themselves to the ground by sticky threads.

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Life History and Behavior

Behavior

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Reproduction

Horsfield's Bronze-Cuckoo is a nest parasite, like many other cuckoos. It usually parasitises bird species that build dome nests such as fairy-wrens and thornbills, but may also parasitise the open cup nests of other species, such as the White-fronted Chat. The female lays one egg in the host's nest. This egg can sometimes resemble the host's eggs in markings, but not necessarily. If the egg is laid before those of the host, the host bird may build over or abandon the cuckoo egg. Otherwise, the female cuckoo removes one of the host's eggs, or the newly hatched young cuckoo ejects the eggs or nestlings of the host. The host parents incubate the cuckoo egg and feed the young, up to several weeks after it fledges. Breeding season: July to February in south; all months except April and July in north. Clutch size: One Incubation: 12 days Time in nest: 16 days

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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2012

Assessor/s
BirdLife International

Reviewer/s
Butchart, S. & Symes, A.

Contributor/s

Justification
This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be stable, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size has not been quantified, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.
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Not Threatened.

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Population

Population
The global population size has not been quantified, but the species is reported to be common in much of its breeding range (del Hoyo et al. 1997).

Population Trend
Stable
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Wikipedia

Horsfield's Bronze Cuckoo

The Horsfield's Bronze Cuckoo (Chrysococcyx basalis) is a species of cuckoo in the Cuculidae family, found from Australia to South-east Asia. The species was previously known by the scientific name of Chalcites basalis.

The common name commemorates the American naturalist Thomas Horsfield.[2]

Photographed at Capertee Valley, NSW, Australia


Media[edit]

Typical call, SE Queensland, Australia


References[edit]

  1. ^ BirdLife International (2012). "Chrysococcyx basalis". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 26 November 2013. 
  2. ^ Beolens, Bo; Watkins, Michael (2003). Whose Bird? Men and Women Commemorated in the Common Names of Birds. London: Christopher Helm. p. 170. 
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