Analysis of keystone species of some Wild species of Birds and Mammals of Jharkhand Plateau, India. M. C. Mahata Ex- Professor & Former HOD Zoology, R.U., Ranchi – 834008 Email : mahatamanik@rediffmail.com & Kalpana Mohanta (Retd. Reader & HOD in Botany) Udala College, Udala- 757041 Abstract Keystone species play important role to flourish many species of Wild birds and mammals in their natural state as well as to other species of the animal kingdom. They belong to plant and animal groups and constitute important food item for some wild birds and mammals. Once in the forested coverage of Jharkhand plateau, the keystone species were quantitatively existing in many varieties, but in few decades back i.e., in very recent past, they are depleted so much so, that they forced many wild birds and mammalian species either to be depleted to a very thin number or to be vanished locally from the scene of forested coverage of the plateau. The birds ...