Is a Cactus Wren an Omnivore Carnivore or Herbivore?

The Arizona cactus wren[Campylorhynchus brunneicapillus] is an omnivore, because it eats plants and animals. Its preferred diet includes insects, seeds, and small frogs and lizards. So it isn't an herbivore, since it doesn't eat just seeds. Neither is it an insectivore, since it doesn't eat just insects. Nor is it a carnivore, since it doesn't eat just flesh. Instead, it's an omnivore, since it eats everything.