Blue-Footed Boobies

blue footed booby feet galapagos

Blue-Footed Boobies

Blue-Footed Boobies

Why They're Cool: Did you know that the color of those famous blue feet can tell you about the bird's sex life? Males who haven't mated in a while will have more vibrantly colored feet to help attract a partner, while the feet of more "profligate" birds, as our guide put it, are often a more faded shade of blue. Another, not-so-fun fact: The population of blue-footed boobies is plunging. Scientists pin the blame on declining numbers of sardines, the boobies' main food source, likely due to overfishing or global warming. Fortunately, the Galapagos' other two species -- red-footed boobies and Nazca boobies -- are faring better.

Where to See Them: North Seymour, Espanola, San Cristobal