The rockhopper penguin is one of several species of crested penguins often seen hopping and leaping amongst the craggy, windswept shorelines of the islands north of Antarctica, from Chile to New Zealand. These gregarious marine birds are among the world’s smallest penguin, standing about 20 inches (50 centimeters) tall. The rockhopper penguin has blood-red eyes, a red-orange beak, and pink webbed feet. Both parents take turns incubating the eggs, aggressively pecking at anything, big or small, that may stray too close.