Hotair ballooning

In filmmaking and video production, a bird's-eye shot refers to a shot looking directly down on the subject. The perspective is very foreshortened, making the subject appear short and squat. This shot can be used to give an overall establishing shot of a scene, or to emphasise the smallness or
insignificance of the subjects.
These shots are normally used for battle scenes or establishing where the character is. It is shot by lifting the camera up by hands or by hanging it off something strong enough to support it. For a scene that needs a large area shot, then it will most often likely to be lifted by a crane or some other sort of machine