agua aqua aquatic freshwater h2o lago lake lillie pad lillie pads lilly pad lilly pads natural nature pantano swamp water weed wet wetland wetlands anhinga-novaehollandiae Australasian-darter Australian-darter bird Darter darters divers diving forager foraging freshwater-wetlands large long-necked long-tailed serpentine sharp-pointed-bill sinuous-neck slim snake-like-neck snakebird spear-bill submerged-swimmers water-bird atmospheric bank berlin bog bushes country fen Freshwater marsh germany grunewaldsee idyllic lakeside landscape light marsh natural environment Natural landscape nature reserve plant plants pond reed reeds reflection reflections rural sky straw