Pete Oxford / Finch specimens at the Charles Darwin Research Station, Puerto Ayora, Santa Cruz Island, Galapagos Islands, L to R Top: Large Ground Finch (Geospiza magnirostris), Woodpecker Finch (Cactospiza pallidu...
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Mark Moffett / Large Ground Finch (Geospiza magnirostris) endemic species, extra large bill for cracking large seeds, largest of Darwin's 13 Finches, Santiago Island, Galapagos Islands, Ecuador
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Pete Oxford / Large cactus ground finch {Geospiza conirostris} Tower (Genovesa) Is, Galapagos, tool making Book page 88
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Tui De Roy / Large cactus finch (Geospiza conirostris), cracking open spiny armored Trebulus seeds. Espanola Island, Galapagos Islands, Ecuador, May.
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Tui De Roy / Large cactus finch (Geospiza conirostris). Espanola Island, Galapagos Islands, Ecuador, May.
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Tui De Roy / Large cactus finch (Geospiza conirostris). Espanola Island, Galapagos Islands, Ecuador, May.
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Pete Oxford / Large cactus ground finch {Geospiza conirostris} Santa Cruz Is, Galapagos
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Steve Gettle / Large Ground Finch (Geospiza magnirostris), Galapagos Islands, Ecuador
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Steve Gettle / Large Ground Finch (Geospiza magnirostris), Galapagos Islands, Ecuador
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John Abbott / Large cactus ground finch (Geospiza conirostris conirostris) Espanola Island, Galapagos
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John Abbott / Large cactus ground finch (Geospiza conirostris conirostris) Espanola Island, Galapagos
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John Abbott / Large ground finch (Geospiza magnirostris) female feeding, Genovesa Island, Galapagos
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Pete Oxford / Large Ground Finch (Geospiza magnirostris) perched, eating seed, Highlands of Santa Cruz Island, Galapagos
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Pete Oxford / Large Ground Finch (Geospiza magnirostris), highlands of Santa Cruz Island, Galapagos Islands, Ecuador
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Tui De Roy / Large Ground Finch (Geospiza magnirostris) feeding on unripe Blue Passionvine (Passiflora foetida) fruit, Galapagos Islands, Ecuador
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Murray Cooper / Large Ground Finch (Geospiza magnirostris) eating seed, Galapagos Islands, Ecuador
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Juan Carlos Munoz / Large cactus ground finch {Geospiza conirostris} feeding on seed, Espanola Island, Galapagos, January
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Pete Oxford / Large Cactus Ground Finch (Geospiza conirostris) perched, Punta Suarez, Española / Hood Island, Galapagos Islands, Ecuador, South America
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Tim Laman / Large ground finch (Geospiza magnirostris) cracking a seed on a branch. Santa Cruz Island, Galapagos Islands.
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Tui De Roy / Large Ground-Finch (Geospiza magnirostris) male, Santa Cruz Island, Galapagos Islands, Ecuador
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Tui De Roy / Large Ground-Finch (Geospiza magnirostris) feeding on seeds, Genovesa Island, Galapagos Islands, Ecuador
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Tui De Roy / Sharp-beaked Ground-Finch (Geospiza difficilis) group drawing blood from Nazca Booby (Sula granti) feathers as feeding adaptation during arid conditions, Wolf Island, Galapagos Islands, Ecuador
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Paul Johnson / Large ground finch (Geospiza magnirostris) one speciment brought back from Galapagos by Darwin, British museum, London, UK
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Hiroya Minakuchi / Large Ground Finch (Geospiza magnirostris) feeding on seed, Galapagos Islands, Ecuador
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Tui De Roy / Large Ground Finch (Geospiza magnirostris) showing beak shape forest crushing large seeds, Academy Bay, Santa Cruz Island, Galapagos Islands, Ecuador
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Tui De Roy / Large Ground Finch (Geospiza magnirostris) male extracting seeds from Passiflora fruit, Academy Bay, Santa Cruz Island, Galapagos Islands, Ecuador
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Mark Moffett / Large Ground Finch (Geospiza magnirostris) feeding, endemic species, extra large bill for cracking large seeds, largest of Darwin's 13 Finches, Santiago Island, Galapagos Islands, Ecuador
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Tui De Roy / Large Ground Finch (Geospiza magnirostris) showing beak shape for crushing large seeds, Academy Bay, Santa Cruz Island, Galapagos Islands, Ecuador
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Tui De Roy / Large Ground Finch (Geospiza magnirostris) endemic, extra large bill for cracking large seeds, largest of the 13 species of Darwin's Finches, Genovesa Tower Island, Galapagos Islands, Ecuador
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Tui De Roy / Large Ground Finch (Geospiza magnirostris) endemic, extra large bill for cracking large seeds, largest of the 13 species of Darwin's Finches, Genovesa Tower Island, Galapagos Islands, Ecuador
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Tui De Roy / Large Ground Finch (Geospiza magnirostris) endemic, extra large bill for cracking large seeds, largest of the 13 species of Darwin's Finches, Genovesa Tower Island, Galapagos Islands, Ecuador
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Tui De Roy / Large Ground Finch (Geospiza magnirostris) portrait, Tower Island, Galapagos Islands, Ecuador
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Pete Oxford / Large cactus ground finch {Geospiza conirostris} on cactus, Tower Island, Galapagos
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Pete Oxford / Large cactus ground finch {Geospiza conirostris} on cactus, Tower Island, Galapagos
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Tui De Roy / Large Ground Finch (Geospiza magnirostris) feeding on Angiosperm (Scutia sp) seeds, Santa Cruz Island, Galapagos Islands, Ecuador
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Tom Vezo / Large ground finch feeding on fruit {Geospiza megnirostris} Santa Cruz Is Galapagos Darwin
