The above animation is a Pixar short titled “For the Birds.” The animation shows a bunch of birds sitting on an overhead power line before a larger bird comes over and tries to talk to these birds. Since the smaller birds think he looks weird they laugh at him and do not let him join them but after the large bird is forced off the power line it springs upwards and causes all the smaller birds to lose their feathers.
The animation shows many of the principles of animation. It shows the principle “follow through & overlapping action” in the birds movement as when all the birds move their feathers bounce around a little as well. This makes the animation much more realistic as it gives the feathers weight: since they so easily move they are very light.
The animation also displays “squash & stretch” as when the larger bird sits on the power line and all the small birds slide downwards they all squash together and makes their width smaller but height bigger (they still have the same volume it is just shown differently through squash and stretch).
The principle staging is used quite well at around 02:15 where the camera zooms out (for the first time since the smaller birds started pecking the bigger bird’s foot for him to fall off) to show just how close to the floor they all are, showing that by the smaller birds pecking the bigger bird’s foot they are actually harming themselves more than him. The camera then focuses on the smaller birds faces after they have noticed this to show their panic.
Arcs is used for the larger birds flying as when he flies he does not just fly straight ahead he travels in a downward arc before an upward arc. This adds realism to the animation as creates do not move in perfect lines.