animal behaviour conflict conservation documentation elephant elephas endangered evergreen female forest habitat herbivore herd human India Indian mammal Nepal pachyderm photograph protection reserve species subspecies threatened West Bengal wild wildlife beech Beech Trees big natural forest old Roots.green Stump sunbeams sunburst sunlight sunrays farm sheep white wool abstract bark detail pattern pine pines tree trees maple texture bare broken dead stripped timber twig twigs wood beak bird black canada Corvidae curious driftwood feathers feet natural nature raven scavenger cork grove oak plantation Quercus Sardinia shade stone suber wall anvil harvest incus instruments iron reaper reapers reaping scythe sharpen sharpening Sickle tool