Would you want your newborn delivered by one of these sickly looking storks? Standing over 5 feet tall with a wingspan of more than 10 feet, these African birds are scavengers of large carrion, which is why they have featherless heads. They also eat other birds, and have even been known to consume flamingos.
These birds also have some unattractive habits. They defecate all over their legs and feet, giving their appendages a lovely white appearance, reports Kruger National Park. This helps them regulate their body temperature. Marabou storks aren't particularly active; in fact, they are relatively lazy. They stand around much of the time and often pant excessively when they are hot.