RavikantDeepak2020-02-012020-02-012019http://krishikosh.egranth.ac.in/handle/1/5810142279The present investigation was carried out in CCS Haryana Agricultural University, Hisar and nearby villages (Sisai and Datta-Gurana) for documentation of avian faunal diversity in and around district Hisar (Haryana) and isolation and characterization of bacterial agents from avian fecal matter. During the course of study 87 avian species of 19 orders, 41 families of the class Aves were studied. Order Passeriformes was predominant with 36 avian species among the studied orders. Family Muscicapidae with seven avian species was the predominant followed by family motacillidae with six species. The IUCN Status was also recorded for the spotted bird species. According to the IUCN, out of 87 birds species (reported in these study areas), the status of 86 birds species were found to be least concern while one was Near Threatened (Alexandrine Parakeet). About 55% of the observed species in the study area were common, 27% were very common, 17% were less common and 1% of the recorded species were rare. In the major horticultural crops studied (Ber, Guava, Mango), the maximum damage caused by birds was found in guava, followed by ber and mango. The maximum pestilence was caused by parakeets, followed by Red vented Bulbul. Birds as reported pests belonged to four families Psittacidae, Pycnonotidae, Corvidae and Megalaimidae. Total eight bacteria were isolated from the fecal matter of five different bird species. These were Y. enterocolitica, S. aureus, A. faecalis, E.coli, Pseudomonas sp., Campylobacter sp. and Enterobacter sp. On the basis of antibiotic susceptibility test not a single bacterium was reported to be multi-drug resistant. The four essential oils were also tested for their antimicrobial activity against the isolated bacteria. The four essential oils (Neem seed oil, Basil oil, Citronella oil and Mentha Pepprita oil) were also tested for their antimicrobial activity against the isolated bacteria. The maximum zone of inhibition was seen in Pseudomonas sp., E.coli , S. aureus, Enterobacter sp and Campylobacter sp. by the basil oil with 100% concentration, 50% concentration and 25% concentration. However, all of the isolates were found to be resistant to Neem seed oil (at all treated concentrations). Antibacterial activity of the selected essential oils was good against all the tested bacterial isolates.ennullThesis