Cyanocorax caeruleus — Details

Azure Jay learn more about names for this taxon

Overview

Distribution

Range Description

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Cyanocorax caeruleus is rare to locally common in south-east Brazil (south São Paulo south to Rio Grande do Sul), north-east Argentina (Misiones and north Corrientes). A small number of records exist for Paraguay1,2,5,7, but these are not considered credible9. Populations have apparently declined substantially, particularly in the west of its range, and is now most common in south-east Brazil7.
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Ecology

Habitat

Habitat and Ecology

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Habitat and Ecology
It is rare to locally common up to 1,000 m in lowland evergreen, southern temperate, white-sand and secondary forest and, at least seasonally, is most numerous in Araucaria forest6,7,8.

Systems
  • Terrestrial
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Life History and Behavior

Life Expectancy

Lifespan, longevity, and ageing

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Maximum longevity: 36 years (captivity)
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Conservation

Conservation Status

IUCN Red List Assessment

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Red List Category
NT
Near Threatened

Red List Criteria

Version
3.1

Year Assessed
2008

Assessor/s
BirdLife International

Reviewer/s
Gilroy, J., Butchart, S.

Contributor/s
Chebez, J.

Justification
This forest-dwelling species is likely to be declining moderately rapidly throughout its range as a result of ongoing habitat destruction. It is therefore considered Near Threatened.

History
  • 2004
    Near Threatened
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Population

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Population
The global population size has not been quantified, but this species is described as 'uncommon' (Stotz et al. 1996).

Population Trend
Decreasing
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Threats

Threats

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Major Threats
Agricultural conversion and deforestation for mining and plantation production historically threaten its habitat, with current key threats from urbanisation, industrialisation, agricultural expansion, colonisation and associated road-building3,4.
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Management

Conservation Actions

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Conservation Actions
Conservation Actions Underway

Conservation Actions Proposed
Conduct ecological studies to determine habitat requirements, tolerance of secondary habitats and fragmentation. Campaign for the protection of remaining primary forest areas within the range.

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Wikipedia

Azure Jay

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The Azure Jay (Cyanocorax caeruleus) (Brazilian Portuguese: Gralha-azul - blue jay) is a passeriform bird of the crow family Corvidae. It is found in the Atlantic Forest, especially with Araucaria angustifolia, in south-eastern Brazil (São Paulo to Rio Grande do Sul), far eastern Paraguay and far north-eastern Argentina. It is the state bird of Paraná.

The Azure Jay has a total length of approximately 40 cm (16 in) and it weighs about 270 grams (9.6 oz), and is the largest South American corvid. Its plumage is intensely blue with a contrasting black head and upper chest. Males and females are similar, although the females typically are smaller.

It feeds extensively on the nut-like seeds of Araucaria angustifolia, but it is not strictly limited to this, since it also feeds on insects and fruit. As other corvids, Azure Jays are highly intelligent. Their communication is complex, consisting of at least 14 distinct vocalizations. They form groups of 4 to 15 individuals that are well organized in hierarchies. These groups remain stable for up to two generations.

See also

References

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