Capturing wildlife on camera can be difficult. They are constantly in motion and you have to be quick! My little buddy was scurrying about quite ferociously and begging me for peanuts. When he discovered the cache I had left, I managed to capture him in motion munching on his treats. His little body was either trembling in anticipation for his tasty snack or because another squirrel was running about and threatening to take it from him. (I am in the habit of causing "squirrel wars" with my peanut snacks!)
In order to capture wildlife in action it is best to use a high shutter speed and multiple high speed shots!