La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	The distribution and status of Sichuan Grey Jay (Perisoreus internigrans)
Auteurs :	Y. H. Sun, Auteur ; C. X. Jia, Auteur ; Y. Fang, Auteur
Type de document :	Article
Dans :	Journal of Ornithology (142(1) JAN 2001)
Article en page(s) :	93-98
Langues:	Anglais
Résumé :	The Sichuan Grey Jay is one of the least known endemic bird species in China, distributed in Gansu, Sichuan, Qinghai and Tibet in west China. The species inhabits the mountain spruce-fir conifer forest, at the altitude between 2 900 m to 3 800 m. Males are slightly larger than females. 31.3 % (n = 19) of the individuals were found to have a white wing-bar, a characteristic which might be related to the age of the individual bird. This bird species was always reported to be rare. Large parts of the conifer forests within its distributional range have been cut down in the past 30-40 years which probably made it an even more rare and endangered local endemic. This jay may be able to stand a fair amount of selective forest cutting, but only within certain limits. Substantial research is urgently needed on its behaviour, ecology, conservation and genetic relationships.

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