Year of compilation: 2004
AVIFAUNA: About 159 bird species have been recorded in Taley Valley WLS so far (Singh 1994). Most of these species breed here, enhancing the importance of this IBA site. The only globally threatened species confirmed from this area is the Rufous-necked Hornbill Aceros nipalensis. Presence of Blyth’s Tragopan Tragopan blythii, another threatened species, has yet to be confirmed, though the related, Temminck’s Tragopan Tragopan temminckii is reported. A few notable bird records from this IBA site are the Purple Cochoa Cochoa purpurea, the only record of the species from Arunachal Pradesh (Singh 1994). This rare species is reported to breed in Taley Valley forests. A record of Yellow-rumped Honeyguide Indicator xanthonotus is the second record of the species from the state.
The Eurasian Tree-creeper Certhia familiaris, a bird of the Western Himalaya, was first noted by Singh (1994) from Taley Valley, which is a considerable eastward extension of its range in the Himalaya. Another first record from Arunachal Pradesh is that of the Silver-backed Needletail Hirundapus cochinchinensis. It was seen by Singh (1994) in March 1994 at an elevation of 2,400 m.
Of the 21 species recorded in India in the Eastern Himalayas EBA (Stattersfield et al. 1998) 10 have been reported from this IBA. There are not many IBAs in this EBA where so many Restricted Range species are found
Due to altitudinal variation from 120 m to 3,000 m, this site represents three biomes: Biome-7 (Sino-Himalayan Temperate Forest), Biome-8 (Sino-Himalayan Subtropical Forest) and Biome-9 (Indo-Chinese Tropical Moist Forest). A total of 58 biome species are found in this IBA but they are too many to list here. Some of the interesting species seen here are Common Hill-Partridge Arborophila torqueola, Striated Laughingthrush Garrulax striatus, Slender-billed Scimitar-babbler Xiphirhynchus superciliaris, Rusty-flanked Tree-creeper Certhia nipalensis, Crimson-browed Finch Pinicola subhimachala, Brown Bullfinch Pyrrhula nipalensis, Rusty-fronted Barwing Actinodura egertoni, Red-headed Tit Aegithalos concinnus, Black-spotted Yellow Tit Parus spilonotus and Black-throated Sunbird Aethopyga saturata.
OTHER KEY FAUNA: The Taley valley is famous for rare and elusive cats such as the Clouded leopard Neofelis nebulosa and Golden Cat Catopuma temmincki. Some other mammals found in the area are Tiger Panthera tigris, Leopard P. pardus, Leopard Cat Prionailurus bengalensis, Capped Langur Trachypithecus pileatus, Asiatic Black Bear Ursus thibetanus and Chinese pangolin Manis crassicaudata.
In India, Taley Valley is one of the few examples of undisturbed pristine climax vegetation. Though the forests in the Sanctuary are intact, the surrounding hills are almost barren.
Taley Valley Wildlife Sanctuary and Reserve Forest is in great danger of being irreversibly damaged if the Lower Subansiri hydroelectric project is completed (Vagholikar and Ahmed 2003). Intended to generate 2,000 MW of electricity, the dam would submerge 3,436 ha of forest. The Environmental Impact Assessment Report that has been submitted by the project authorities has glaring errors in the biodiversity and wildlife components. The project has been cleared by the Central Government despite the violations by the project under the Environment Protection Act and the Forest Conservation Act. The downstream impacts of such a large project on fisheries, rice cultivation and endangered species such as the Gangetic Dolphin Platanista gangetica have not been considered. Moreover, the area is prone to earthquakes and landslides, a fact that appears to have been glossed over by the project authorities.
The Taley Valley and adjoining areas is the land of Apatani tribe, which is well known for its conservation ethics and sustainable practices.
BirdLife International (2020) Important Bird Areas factsheet: Taley Valley Wildlife Sanctuary. Downloaded from http://www.birdlife.org on 26/02/2020.