a wedge-billed galápagos finch found only on genovesa island

galaiexcl pagos galapagos ecuador conservancy tropics ecuadorian coasts national park wildlife archipelago pacific closeup wild animal natural nature el barranco genovesa island islands fauna birds endemic common long beak charles darwin evolution theory selection species origin seed eater ground finch native geospiza acutirostris wedgebilled female open feathered foraging large wedge shaped bill