Hawk Eye

Hawk Eye exercises the brain's visual precision. A flock of birds are displayed on the screen for a very short time. Select the section of the screen that contained the bird that is different from the others. At first, the birds are fairly distinct, appear close together, and are presented on a simple background. As the exercise gets more difficult, the contrast between the birds will decrease, they will appear farther apart, and the background will become more complex.

For more information on this exercise click here