Avian diversity of Vadakkechira area, a green lung of Thrissur

Urbanization and loss of natural habitat has resulted in cities being identified as ecosystems capable of sustaining biotic communities and diversity. This study measured bird species diversity at Vadakkechira pond and surrounding areas during the period 2002-2009. This habitat is situated right in the heart of the city of Thrissur which is renowned for its historic importance and cultural extravaganzas. Data was collected by line transect method and point transect method. Birds of 29 different species were recorded. Shannon-Weiner Diversity Index and Simpson’s Diversity Index were calculated. Dominant species of the area were identified and their population over the years was studied. The abundance and diversity of avian species in a specific habitat could serve as a useful barometer of its ecological status.