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Male sharp-beaked ground-finch
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Female sharp-beaked ground-finch atop cactus
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Sharp-beaked ground-finch foraging on the ground
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Sharp-beaked ground-finch perched on nazca booby
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Sharp-beaked ground-finch calling
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Sharp-beaked ground-finch, one of Darwin's specimens
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Sharp-beaked ground-finch specimen, collected during the voyage of The Beagle