The Indian Himalayan Region (IHR) is well recognized for its ecological, hydrological and aesthetic values and is considered as the repository of biological and cultural diversity. Western Himalaya is an important area for bird diversity and harbours several regional endemic species and has been desginated as Endemic Bird Area (EBA 28).This study was carried out to scrutinize the diversity of the birds at different types of vegetation around NDBR (Nanda Devi Biosphere Reserve), Uttarakhand.

Concentrations of water soluble ions (Na, K, Ca and Mg) in PM10 alongwith gaseous pollutants (NO2 and SO2) were measured during summer season of 2009. The sampling site is located near National Highway which is a high traffic density site.