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Ecology

Habitat

Habitat and Ecology

Systems
  • Terrestrial
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Irena puella

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 2
Species With Barcodes: 1
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Source: Barcode of Life Data Systems (BOLD)

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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). Despite the fact that the population trend appears to be decreasing, the decline is not believed to be sufficiently rapid to 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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Population

Population
The global population size has not been quantified, but the species is described as common throughout its range, although locally uncommon or rare (del Hoyo et al. 2005).

Population Trend
Decreasing
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Wikipedia

Asian fairy-bluebird

The Asian fairy-bluebird (Irena puella) is a medium-sized, arboreal passerine bird.

This fairy-bluebird is found in forests across tropical southern Asia from the Himalayan foothills, India and Sri Lanka east through Indochina, the Greater Sundas and Palawan (Philippines). Two or three eggs are laid in a small cup nest in a tree. It was described by British ornithologist John Latham in 1790. The only other member of the genus and family is the Philippine fairy-bluebird, I. cyanogastra, which replaces the Asian fairy-bluebird in most of the Philippines.

The adult Asian fairy bluebird is about 24 to 27 centimetres (9.4 to 10.6 in). The male has glossy, iridescent blue upperparts, and black underparts and flight feathers. The female and first year male are entirely dull blue-green.

The Asian fairy bluebird eats fruit, nectar and some insects. Its call is a liquid two note glue-it.

Description[edit]

Male and female Cotigao NP, Goa, India

The Asian fairy bluebird measures 24 to 27 centimetres (9.4 to 10.6 in) in length. The iris is crimson and eyelids pinkish; the bill, legs and claws are black, and mouth a flesh- colour. Marked sexual dimorphism is evident. The male is a shining ultramarine-blue with lilac reflections on its upper plumage, lesser wing coverts, and under tail coverts, while the sides of its head and the whole lower plumage are deep black; greater wing-coverts, quills, and tail black, and some of the coverts tipped with blue, and the middle tail-feathers glossed with blue.

The upper plumage, the lesser wing coverts, and the lower tail coverts of the female are brownish blue, with the edges of the feathers brighter. The middle tail feathers and the outer webs of all the others, except the outer pair, like the upper plumage, and remainder of tail dark brown. primaries and secondaries dark brown. The greater wing coverts, primary coverts, and tertiaries dark brown, with a blue tinge on the outer webs. Sides of the head and whole lower plumage blue, very similar to the upper parts. The young resemble the female. The male changes into adult plumage in March, the change taking place without a moult. The feathers of the upper parts first become fringed with bright blue, then the tail coverts change, and finally the lower plumage changes. Young birds with the lower plumage mixed black and dull blue, and the upper plumage like that of the adult are frequently seen.

There are several subspecies, including I. cyanea malayensis from the Malay Peninsula, where the male differs in having the undertail coverts longer, nearly reaching to the tip of the tail.

Distribution and habitat[edit]

Sri Lanka; the western coast of India from Travancore up to the latitude of Belgaum and Sawantwadi; Sikkim and the lower ranges of the Himalayas to Dibrugarh in Assam; the Khasi Hills; Cachar; Manipur; Arrakan; Bago and Taninthayi Division in Burma; the Andaman and Nicobar Islands. In southeast Asia it occurs throughout most of Indochina (including Peninsular Malaysia), Sumatra, Borneo, Java, Palawan, and on smaller nearby islands. In the Indian part of its range this species is confined to the evergreen forests of the hills and plains, but elsewhere it is regular in various types of humid and deciduous forests from lowlands up to about 1,600 metres (5,200 ft).

Behaviour[edit]

This bird is common in most of the tracts it frequents, going about in small parties or in pairs.

Calls (whiplash) along with some Iole indica calls

Feeding[edit]

It feeds principally on fruit and is generally found on the larger forest-trees.

Breeding[edit]

It breeds from February to April, constructing a shallow cup-shaped nest, sometimes of moss and sometimes of small twigs, in a sapling or small tree. The eggs, which are generally two in number, are greenish white marked with brown, and measure about 1.14 cm by .77 cm.[2]

Gallery[edit]

Notes[edit]

  1. ^ BirdLife International (2012). "Irena puella". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 26 November 2013. 
  2. ^ Oates, E. W. (1889) Fauna of British India. Birds. Volume 1.

References[edit]

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