When buzzards are shown on the screen, sometimes they look as if they were high in the air, near to the player's view point. They can be also quite large, (because if something is near, it looks bigger). As a consequence they can be shown to be at abnormal places.
However, they act normally, just as any other buzzard.
Normal world settings, just go to desert and look for buzzards. Sometimes one is shown buggy (as described above).