Emperor Penquins sing to attract their mates. If you’ve seen “Happy Feet”, then you already know that male Emperor penguins sing (called "bugling") to attract a female. But it’s more than that. Penguins actually have their own breeding site, often walking 30 to 70 miles to reach it. Although penguins are monogamous, if they can't find their mate in the crowd the following year, they'd often move on and mate with another. Hey, if you gotta breed, you gotta breed. So much for faithfulness.