author(s)
VV Bala Subramanyam and YD Imran Khan

abstract
Birds are highly diverse and noticeable biota of the ecosystem. They are the potential bio-indicators of every ecosystem. Presently birds’ population is decreasing rapidly due to several factors such as unplanned development activities, climate change, urbanization etc. The main objective of this study is to prepare a checklist of avifauna in the study region enabling us to understand the diversity of avifauna. Present study was conducted in Chillavaripalli and Ellutla Reserve forests located in Anantapur district of Andhra Pradesh. Complete avian survey has been conducted for one year from October 2015 to September 2016 in and around the study area, which extends to over 201538 Sq. Km. of mosaic habitat of agriculture scrub, grassland, and rice fields. We adopted standard methods for Survey in the study area and identified a total 119 avian species of 51 families. A comparative study of these populations in different habitats was been also carried out studied of which agriculture land habitat has recorded high species richness followed by scrubland, and grassland. Conversely, species diversity observed to be more in scrubland habitat followed by agriculture lands, and grasslands areas. This study will serve as an excellent baseline assessment for future research. It will also help in decision making at micro level, towards sustainable management of bird habitats and ecosystem services providing by birds in the study region.