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DescriptionHumboldt penguins are named after the cold current of water running from the Antarctic to the equator along the west coast of South America (itself named after the German naturalist Friedrich Humboldt). Humboldt penguins are medium-sized penguins with proportionately large heads, black backs and tails, and a black band across the chest that runs down the body beneath the flippers to the black feet. The face is also black, but separated from the head and neck by a white border. The strong bill is black with a white band near the tip and the lower mandible has a pink fleshy-coloured base extending to the front of the eyes (6) (7). Females are slightly smaller than the males but are otherwise similar. Juvenile birds are predominantly slate grey across the head and back, white at the front, and lack the bold double stripe of the adults (6).