Squirrel poop is darker and smaller than rabbit poop. It is also more likely to have a strong odor. Rabbit poop is generally lighter in color and larger in size. It also tends to be more dry and crumbly than squirrel poop. Squirrels are more likely to live in trees, while rabbits typically live on the ground. This difference in habitat affects the type of food they eat and, as a result, the composition of their feces. Squirrels mostly eat nuts and seeds, which makes their poop darker and smaller. Rabbit diet consists mostly of grass, which makes their feces lighter in color and larger.