The study Biodiversity of the birds winter pass in kaji wetland, South Khorasan, in the 5-year period (2007-2011)

Wetland ecosystems have habitat and nutritional high value for the large community of native birds and their associated support, among the various animal species dependent on wetlands, wetland birds are including unique specimens, which are very important in terms of economic and research works. The aim of this study is to identify and evaluate the biodiversity of kaji wetlands in South Khorasan. The region has an important role for the survival of migratory birds, thus, in addition to introducing wetlands, Biodiversity indices were calculated. The results show that kaji wetland was highest Margalef species richness index in 2007, Terms of species richness. The results of kaji wetland birds biodiversity indices show that the 5 year period, 2007 has the highest Simpson's diversity and Shannon -Wiener diversity indices. Pielo evenness index have the highest value in 2007 than other years, which indicates a uniform distribution of the species in this year.