Exploring avian richness in some village areas of Assam, India

As the second largest state of India, Assam could be a better green place to observe avian population. At the time of surveying, direct observation, and interviews with local people helped to write this paper. The avian diversity in selected seven villages in Assam resulted the richness of birds with 42 species. The Simpson indices suggested high diversity of avian richness in forest, wetland, cropland, and old building with 0.882, 0.926, 0.914, and 0.806 values respectively. Based on the Berger-Parker indices, those birds showed high diversity too with 0.243, 0.144, and 0.174 values. Relative abundance or evenness of different species in the wetlands was found the highest (0.775) whereas the lowest on old buildings (0.557), so the result exhibited as B > C > A > D sites accordingly. Out of 42 species, passerine birds were 18 (43%) in number and non-passerine 24 (57%) species. Within all species, orders were 12, families 30, breeding birds 20 (48%), and resident birds were 38 (90%). Based on the availability of listed birds, these villages focused very common birds 10, common 11, uncommon 9, and rare 12. This study was carried out from October 2024 to October 2025.