Avifaunal Diversity In Urban Area: A Case Study In Vallabh Vidyanagar

In the present work, five major sites of Vallabh Vidyanagar were selected for the study. The survey of birds has been divided into three phases- pre winter, winter and post winter. Birds were counted on a particular site for seven consecutive days in the mornings and evening by Quadrat method. Density, Diversity Index (H′) and Evenness Index (EI or J′) of different bird species in Vallabh Vidyanagar were carried out. When the species of birds were counted for their numbers in different localities, out of total of 44 species, 15 were found to be abundant, 7 frequent, 10 common and 5 rare. Variation in the number of birds found in particular area during observation period might be because of variation in the minimum and maximum temperature which affects the available resources in terms of food, water and shelter. Some hardy species of birds were found to be present during the entire period of study which could be because of constant availability of food resources and also the availability of roosting sites.