But leopards are clever opportunists and watch for clues.
Crows. They, too, are looking for food.
And their calls tell him that they've found something.
But he is not the only predator here.
On one of the trees, the marks of huge claws, ten centimetres long.
They've been made by a hunter twice his size. A siberian tiger.
Fewer than 500 remain in the wild.
These two rare big cats are sharing the same territory.
And fixed remote cameras show that they even use exactly the same trails.
But leopards know they must be careful.
Siberian tigers are the biggest of all the big cats, and could kill a leopard... should they ever meet.
In winter, many forest animals rely on carrion for food. And that includes leopards.
But he can't let down his guard.
The crows that led him here... may also have alerted the tiger.
The crows are disturbed.
Another mouthful might be risky.
Survival sometimes depends on knowing when to leave.