Native to the Galapagos Islands, the Blue Footed Boobie has earned its name from the Spaniards, from the Spanish "bobo", which means clown. They can also take a joke, so don't feel too bad that people call them clowns all the time. Or that we mostly point and stare at their blue bills and feet.
Here's some more information from the Galapagos Islands webpage:
The Blue Footed Boobies above display part of their humorous courtship ritual whereby they raise their feet one at a time and then swivel their heads away from the prospective mate looking to the sky.Boobies, boobies, everywhere... Have you called about your mamogram appointment yet?
Other interesting Booby features are the highly evolved airbag sytems in their skulls which allow them to dive bomb into the sea for fish from great height, and the egg and hatchling nesting boundaries they make which are rings of Boobie poo. They aren't the only Booby on the island - there are also Masked and Red Footed Boobies about.