accomplished-swimmer aquatic Australian bird birds blue-penguin burrow carnivores colors colours diver eudyptula-minor eudyptula-minor-novaehollandiae fairy-penguin flightless flippers limestone-shelter little-penguin penguin penguins plumage poolside pursuit-diver shelter sheltered smallest-penguins swimmers swimming underwater-vision water wet wildlife zoo anas-superciliosa aquatic-bird black-eye-stripe brown-duck common dark-brown duck fauna fowl grey-duck light omnivore omnivorous Pacific-black-duck paddling pond reflecting reflections ripples rippling sunlight sunshine surface surfaces waterbird waterfowl widespread wild-duck wild-life anas superciliosa aquatic bird black eye-stripe brown duck chick direction ducklings follow follow-the-leader following grey duck guidance guiding lead leading mother Pacific black duck protection protective wild duck shade shadows adult-birds appearance Australia-wide Australian-wood-duck chenonetta-jubata family feeding Females forage foragers foraging gray graze grazing grey juveniles males maned-duck maned-goose mottled perching-duck walk walker walking carnivorous nest nesting standing waiting background color colour dark lake nature pair texture textured textures Australian-shelduck chestnut-breasted-shelduck chestnut-coloured-shelduck coloring colouring fairly-large farm-bird goose-like-birds mountain-duck paddle park pied-waterfowl poultry public reflection tadorna-tadornoides urban water-bird water-fowl white white-eye-circle (female) white-neck-collars wild ahead chicks wetlands