Social Birds

Did you know that penguins are the most social of all birds? Well I can see that about them. They live in large groups so why would they not be socialable. I would think being around so many you would have to be. If you have ever been to an aquarium, most likely they will have an exhibit with penguins. Now, if you observe these penguins you will notice that they are social birds, for they are usually found with other penguins, unless they are swimming.