Consumers are living things who get their energy by eating other living things. All animals are consumers.
Animals who only eat plants are called herbivores. We can say that a red-rumped Agouti is herbivorous, because it only eats plants.
Animals who only eat other animals are called carnivores. Cats are carnivorous. There are different kinds of carnivorous animals. For example, animals who only eat insects are insectivores. Animals who only eat fish are piscivorous.
Animals who eat both plants and other animals are omnivores. Pearly-eyed Thrashers are omnivorous, as they eat fruit and invertebrates.