An omnivore is an animal that eats food from both plants and animals, which may include eggs, insects, fungi and algae. Many omnivores evolved to that state after many years, and are opportunistic feeders. Many rely on both vegetation and animal protein to remain healthy.
Birds That Are Omnivores
- Cassowary
- Chickens
- Corvids: choughs, treepies, magpies, jays, papiac, Stresemann’s Bushcrow, nutcrackers, crows, ravens, jackdaws, rooks
- Crows
- Emus
- Hummingbirds
- Keas
- Orioles
- Ostriches
- Rheas
- Robins
- Rooks
- Seagulls: Pacific Gull, Black-tailed Gull, Common Gull, American Herring Gull, Mediterranean Gull, Dolphin Gull, Red-billed Gull, Saunders’s Gull, Black-legged Kittiwake, Ivory Gull, Sabine’s Gull, Swallow-tailed Gull
- Starlings
- Woodpeckers
Aquatic Birds That Are Omnivores
- Cranes: Brolga, Black Crowned Crane, Grey Crowned Crane, Common Crane, Sandhill Crane, Whooping Crane, Sarus Crane, Siberian Crane, White-naped Crane, Hooded Crane, Black-necked Crane, Red-crowned Crane, Blue Crane, Demoiselle Crane, Wattled Crane
- Ducks
- Flamingos
- Red-throated Loons or Divers
- Rallidae: coots, crakes, gallinules
- Swans
Mammals That Are Omnivores
- Aardvarks
- Badgers
- Bears (excluding the Giant panda and the Polar bear) – American Black Bear, Asiatic Black Bear, Brown Bear, Sloth Bear, Sun Bear, Ursid hybrid – grizzly, spectacled bear
- Chipmunks
- Coatis
- Foxes: Arctic, Bat-eared, Cozumel, Crab-eating, Ethopian, Falkland Islands, Island, Gray, Red, Tibetan sand
- Hedgehogs
- Mice
- Opossums
- Pigs: Bearded pigs, Warty pigs, Wild boars, Domestic pigs
- Raccoons
- Rats
- Rhinoceroses
- Skunks
- Sloths
- Squirrels: Oriental giant squirrels, tree squirrels, true flying squirrels, Asian ornate squirrels, palm squirrels, neotropical pygmy squirrel, ground squirrels, marmots, chipmunks, prairie dogs, spiny squirrels
Primates Are Omnivores
- Aye-aye
- Dwarf lemurs
- Mouse lemurs
- Ring-tailed lemur
- Sportive lemurs
- Woolly lemurs
- Galagos
- Tarsiers
- Monkeys: capuchins, howler monkey, marmosets, night or owl monkeys, sakis, spider monkeys, squirrel monkeys, tamarins, titis, uakaris, woolly monkeys, woolly spider monkeys
- Gibbons or lesser apes
- Great apes: bonobos, chimpanzees, gorillas, humans, orangutans
Other Omnivores
- American spider beetle
- Ants
- Box turtles
- Catfish
- Cockroaches
- Crickets
- Flies
- Opaleye (fish)
- Pygmy grasshopper
- Piranhas
- Wasps
- Western yellow jacket
Omnivores in the Amazon Rain Forest
- Banded tree frog
- Blue and gray tanager
- Charapa turtle (also called giant Amazon river turtle)
- Poison-dart frog
- Red eyed tree frog
- Rupicola Peruviana (also called cock-of-the-rock)
- Spider monkey
- Squirrel monkey
- Tamarin
- Toucan
- White-faced saki monkey
Omnivores in the Desert
- Badger
- Bighorn sheep
- Coatimundi
- Coyotes
- Desert night lizard
- Desert rats
- Jerboas
- Kit fox
- Rabbit-eared bandicoot
- Raccoons
- Ravens
- Roadrunners
Omnivores in the Ocean
- Blue crabs
- Dolphins
- Flatback sea turtle
- Hawksbill sea turtle
- Leatherback sea turtle
- Manatees
- Olive Ridley sea turtle
- Salt water crabs
- Salt water lobster
- Sea otter
- Sharks
- Whales
Dinosaurs Believed to Have Been Omnivores
- Heterodontosaurus – had teeth for grinding and canines for puncturing
- Gallimimus – a bird-like dinosaur with long claws for picking fruit and capturing prey
- Ornithomimus – a large dinosaur with a large beak for eating small animals and vegetation
- Oviraptor – the jaw bones were powerful for eating both vegetation and eggs
- Therizinosaurs – Its forearms had strong claws, a beak and a long neck for eating insects and vegetation
- Troodons – The teeth resemble herbivore teeth but were coarser, suggesting a diet including eggs, worms and insects
As you can see, lots of different animals have been or are omnivores.
