Bird diversity in Nan-Haizi Milu Park of Beijing, China

As an important component of urban ecosystem, urban parks and other nature reserves provide for the remaining birds with the habitats. However, the rapid urbanization causesnegative effects on the natural landscape and ecosystem, which leads to limited living space for birds as well as abnormal community structure. Taking the Nan-Haizi Milu Park for example with great urbanization in recent years, the wild birds′ community structure and their species diversity are studied in the paper. The species, amounts and distribution of wild birds in Milu Park has been continuouslyinvestigated since October 2014. Till now, 18 orders, 49 families and 156 species of wild birds have been recorded in total, of which 16 species were ranked as the National Class II Key Protection Birds. The dominant species of birds varied with years and seasons. In general, the resident birds including Anas platyrhynchos, Cyanopica cyana, Passer montanus are dominant species in the study area. The Shannon Diversity Index and Pielou Uniformit