WINTER DIVERSITY OF BIRDS FROM A SHORELINE ECOTONE: HENRY’S ISLAND, SUNDARBAN BIOSPHERE RESERVE, INDIAP.K. Ghosh, D. Ghosh, R. Mohanta, S. Ray, A. Mondal, S. Sarkar, R. Ghosh and S. Sardar*
Study of avifaunal diversity is one of the reliable ecological attribute by which ecosystem structure, services and health are indicated from time to time. The present study was carried out in the shoreline Ecotone region of Henryâs Island in Sundarban Biosphere Reserve from South 24 Parganas, West Bengal during early winter months of 2021. A total of 63 avian species belonging to 31 different families and 13 orders were recorded in the winter season following standard field ecology protocols and then foraging guilds were analyzed. Family-wise relative diversity index has been constructed with standard mathematical equation. Six major categories with other seven overlapping foraging guilds were also observed in the present study. Most bird species were found to be insectivorous followed by other foraging guilds.