The Viceroy Butterfly looks like the Monarch Butterfly, and that makes the Viceroy a mimic. Birds know that Monarchs are not good to eat, so the Viceroy avoids being eaten by looking like the Monarch.
The Butterfly uses a tube like appendage called a "Proboscis" to suck up nectar, pollen, tree sap, rotting fruit, dung and other substances that are dissolved into a liquid state. The food of choice...