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Location Uzbekistan, Tashkent
Central coordinates 70o 46.55' East  42o 9.35' North
IBA criteria A1, A3
Area 7,330 ha
Altitude 1,900 - 3,100m
Year of IBA assessment 2007

Uzbekistan Society for the Protection of Birds (Affiliate)

Site description The IBA covers part of the basin of the Pskem river (the middle section of the Oygaing river and adjoining southern mountainside of the Maydantal range in the Western Tyan-Shan), in the Bostanlyk district of Tashkent region. The borders of the IBA are well defined. The site covers all of the southern mountainside of the Mayantal range from the Oygaing river to the ridge of the range, from the mouth of the Tyuzashu river valley to the mouth of the eastern Ayutor river and includes the slopes of these river valleys. The altitude ranges from 1,900-3,050 m above sea level.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Himalayan Snowcock Tetraogallus himalayensis resident  2002  1-3 individuals  good  A3  Least Concern 
Lesser Kestrel Falco naumanni passage  2002-2007  10-250 individuals  poor  A1  Least Concern 
Himalayan Griffon Gyps himalayensis resident  2002-2007  4-40 individuals  good  A3  Near Threatened 
Cinereous Vulture Aegypius monachus resident  2002-2007  12-38 individuals  good  A1  Near Threatened 
Yellow-billed Chough Pyrrhocorax graculus breeding  2002-2007  70-480 individuals  good  A3  Least Concern 
Hume's Lark Calandrella acutirostris breeding  2002-2007  3-23 individuals  good  A3  Least Concern 
Sulphur-bellied Warbler Phylloscopus griseolus breeding  2002-2007  5-10 individuals  good  A3  Least Concern 
Wallcreeper Tichodroma muraria resident  2002  1-2 individuals  good  A3  Least Concern 
White-tailed Rubythroat Luscinia pectoralis breeding  2002-2007  1-3 individuals  good  A3  Least Concern 
White-winged Snowfinch Montifringilla nivalis breeding  2002-2007  10-250 individuals  good  A3  Least Concern 
Alpine Accentor Prunella collaris breeding  2002-2007  1-10 individuals  good  A3  Least Concern 
Brown Accentor Prunella fulvescens breeding  2002-2007  1-15 individuals  good  A3  Least Concern 
Fire-fronted Serin Serinus pusillus breeding  2002-2007  2-40 individuals  good  A3  Least Concern 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Ugam-Chatkal National Park 1,149,200 protected area contains site 7,330  


IUCN habitat Habitat detail Extent (% of site)
Shrubland Scrub  20%
Forest Mixed; Treeline ecotone  40%
Wetlands (inland) Rivers & streams  20%
Rocky areas Inland cliffs  20%

Land use

Land-use Extent (% of site)
nature conservation and research 100%

Other biodiversity Mammals include 38 species, the most intersting are increasing populations of Uncia uncia and Cervus elaphus songaricus. Sus scrofa, Canis lupus, Ursus arctos isabellinus and Lynx lynx are common. Marmota caudata and Ochotona rutila are numerous and Capra sibirica occurs.

Protection status Ugam-Chatkal National Park contains the IBA.

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Oygaing River Valley. Downloaded from on 22/09/2014

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