There are lots of animals that do this and they are classified as herbivores.
<span> A scientific law always applies under the same conditions, and implies that there is a causal relationship involving its elements.</span>
Birds, unlike mammals, do not have separate exits for urine and feces. Both waste products are eliminated simultaneously through the cloaca. While mammals excrete nitrogenous wastes mostly in the form of urea, birds convert it to uric acid or guanine, which reduces water loss in comparison.
Lipids help allow the body to survive because they store energy, the insulate and protect, they help with digestion and absorption, they help with the cell wall structure and lastly, they help hormone production along.