Nazca Boobies, sula granti Genovesa (Tower Island)

The crisscross clacking of beaks captured in this image is part of courtship behavior. Between 1999 and 2002 this booby’s name was changed from Masked Booby to Nazca Booby because specific colorations of this species are found on the Galapagos that differ from the rest of the world.

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