自2006年以来对西藏"一江两河"流域的鸟类资源进行了观测与考察,共记录鸟类15目37科125种,约占全国鸟类的9·4%。该区域鸟类以古北界成分为主,达78种,占总数的62·4%,此外还有东洋界鸟类22种,广布种25种。鸟类中多为留鸟,种类达84种,占到总数的67·2%,冬候鸟29种,夏候鸟12种。该区域有多种被保护的鸟类资源,其中IUCN收录6种,CITES收录19种,中国濒危物种红皮书收录13种;中国重点保护动物名录收录20种。
The bird resources in the drainage area of Yarlung Zangbo River and its two branches are general surveyed from Tibet,China since October 2006.A total of 125 species belonging to 37 families of 15 orders are found and recorded,accounting for about 9.5% of Chinese bird species.Among these birds,there are 78 species of Palaearctic realm (P),accounting for 62.4%,22 species of the Oriental realm (O) and 20 species of widely distributed species (E).In addition,84 species were regarded as resident birds (R),accounting for 67.2% and there are 29 species of winter migrants (W),12 species of summer migrants (S).We also found many protective bird resources in Yarlung Zangbo River and its two branches.6 species are embodied by International Union for the Conservation of Nature (IUCN) List,19 species are embodied by Convention on International Trade in Endangered Species (CITES),13 species are embodied by China Red Data Book of Endangered Animals(RDB),and there are 20 species which can be found in Key Wildlife under First-Grade State Protection (PROT).