One and half decade long Kadar indigenous community based monitoring of Hornbill nests and habitats brought a new dimension to the monitoring of the ecosystem and its various components. The methodology augmented ‘Ecological monitoring’ , a new methodology for long term monitoring of threatened species and ecosystems with the participation of local dependent communities. This ensures a low cost long term monitoring ecosystem climate change while ensuring sustainable use of biological resources and upholding the rights of the indigenous local community."