When we speak about birds, they are commonly omnivores. But there are few exceptions like eagle and penguin. Eagles and penguins are carnivore birds. Carnivore birds eat only meat. Penguins’ diet includes a variety of fish, squid, and krill.
Omnivore birds eat both plants and meat. Fish, insects, dead animal stuff, algae and vegetation fall in the diet list of omnivore birds. Even though penguins live in the marine included by vegetation, they normally don’t eat the plants.