While the other is pink. Yes, pink. Meet the regal flamingo and the charming penguin, birds with feathers who dont flock together. Man but before we get to know this unlikely pair a little better, its a good idea to learn what all birds have in common, and this includes storks, swans, toucans, owls and chickens, too. Yes, every bird you can name belongs to the class aves, which is simply the name for birds as a class of animals to differentiate them from, say, reptiles, mammals, fish, not to mention all the invertebrates both on land, in the air and in the sea. What do all birds have in common, including the big pink bird and the stumpy blacacandwhite one . No, not that they can all be found as lawn ornaments and plush toys. For starters, all birds have an outer covering of feathers. macaw squawks man they have front limbs modified into wings, and they are warmblooded, or ectothermic. Birds lay eggs, and they dont have teeth. But perhaps most startling of all, not all birds can fly. Di