A raven hides its food. Then, if a rival was watching, it comes back and moves it.
That's because the watcher might return to raid the cache, so shifting it protects the meal.
In studies by Thomas Bugnyar and Bernd Heinrich, ravens re-hid food after being observed — especially birds that had robbed caches themselves.
It doesn't prove a raven thinks like a person. But it shows real sensitivity to what another bird saw and might do next.
So the cache isn't placed by hunger alone; it shifts with who was watching when the food went into the ground.