Urocissa caerulea
– Least Concern
Taxonomy
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Kingdom:
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ANIMALIA
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Phylum:
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CHORDATA
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Class:
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AVES
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Order:
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PASSERIFORMES
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Family:
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CORVIDAE
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Scientific Name:
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Urocissa caerulea
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Species Authority:
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Gould, 1863
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Common Name/s:
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Assessment Information
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Red List Category & Criteria:
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LC ver 3.1 (2001)
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Year Assessed:
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2004
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Assessor/s:
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BirdLife International
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Evaluator/s:
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Ekstrom, J. & Butchart, S. (BirdLife International Red List Authority)
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Justification:
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This species has an estimated global extent of occurrence of 20,000–50,000 km². The global population size has not been quantified, but it is believed to be large as the species is described as 'frequent' in at least parts of its range (MacKinnon and Phillipps 2000). Global population trends have not been quantified; there is evidence of a population decline (Severinghaus 1986), but the species is not believed to approach the thresholds for the population decline criterion of the IUCN Red List (i.e., declining more than 30% in ten years or three generations). For these reasons, the species is evaluated as Least Concern.
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History:
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| 1988 | - | Lower Risk/least concern (BirdLife International 2004) |
| 1994 | - | Lower Risk/least concern (BirdLife International 2004) |
| 2000 | - | Lower Risk/least concern (BirdLife International 2000) |
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Geographic Range
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Range Description:
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This species has an estimated global Extent of Occurrence of 20,000-50,000 km². The global population size has not been quantified, but it is believed to be large as the species is described as 'frequent' in at least parts of its range (MacKinnon and Phillipps 2000). Global population trends have not been quantified; there is evidence of a population decline (Severinghaus 1986), but the species is not believed to approach the thresholds for the population decline criterion of the IUCN Red List (i.e. declining more than 30% in ten years or three generations). For these reasons, the species is evaluated as Least Concern.
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Countries:
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Native:
China; Taiwan, Province of China
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Habitat and Ecology
