Working on a climate change story, Thomas had secured a rare permit to land on Wolf Island, a remote part of the Galápagos Islands. Scrambling over loose rocks to reach this plateau, he spied a bizarre scene – pecking away at the flight feathers of a Nazca booby was a sharp-beaked ground finch. With scarce food alternatives, it had resorted to drinking blood to survive.
Encircled by steep cliffs, with no permanent water and little rainfall, Wolf Island is a difficult place to live. While the boobies can fish in the ocean, the finches are limited to a scant supply of seeds and insects. To survive they drink the blood of the Nazca boobies – a behaviour that may have evolved from feeding on parasites in their feathers
Nikon D5 + 16–35mm f4 lens; 1/200 sec at f20; ISO 160; Profoto B1X 500 AirTTL flash
Wolf Island, Galápagos Islands, Ecuador
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Thomas P Peschak, Germany / South Africa
Thomas is an assignment photographer for National Geographic Magazine. He has written and photographed five books and won multiple Wildlife Photographer of the Year and World Press Photo awards. He is a speaker for the National Geographic Live series and in 2015 he gave a TED talk titled Dive Into an Ocean Photographer's World.