Answer:
According to this food web, you see a plant (A type of vegetable) and an insect (A type of meat) pointing arrows to the Aves. Since Aves consumes two different types of proteins (meat and vegetable), Aves is an omnivore.
What are Omnivores?
An omnivore is an animal that eats both plants and animals for its main food. Pigs are omnivores, so they would be just as happy eating an apple, or the worm inside the apple. Omnivore comes from the Latin words omni, meaning "all, everything," and vore, meaning "to devour." So an omnivore will eat pretty much eat anything in sight. Humans are genetically designed to be omnivores, but some people choose to limit their diets. When a person is described as an omnivore, it usually means he's willing to eat all kinds of foods and is not a vegetarian or a vegan or on some other kind of special diet.