indian grey hornbill or ocyceros birostris keoladeo national park forest bharatpur bird sanctuary rajasthan india asia bird

indian grey hornbill india ocyceros birostris keoladeo bharatpur pilibhit dudhwa surai terai jim corbett national park uttar pradesh bird tree green habitat beak bucerotidae family tiger reserve animal perched kishanpur rajaji nature wild wildlife beautiful arboreal bill species jungle safari forest feathers common natural outdoor copy space sanctuary travel environment wings tourism ecotourism