Pair of Nazca Boobies The Nazca Booby (Sula granti) is the largest Galapagos Booby species. This couple has a nest site on the ground marked by a pile of sticks - unlike the Blue-footed Booby that marks its nest with a guano ring. Clattering beaks is part of courtship, as is the offering of pebbles and sticks. Genovesa Island.
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