caution eye eye protection goggle goggles hazard mechanic protection safe safety shop sign warn warning accessory buy choice choose display eye-wear eyeglasses glass glasses holiday light optics protect rays shade shades shopping specs spectacles summer sun sunglass sunglasses armory army bird's eye view block blocks bricks building defend defense festung fortress green hidden historic modlin nature park parks roofs tower trees walls war access-limited advice advising alert appropriate-behavior appropriate-behaviour authorised-entry-only authorized-entry-only black blue boots care clothing concern construction-site danger dangerous directions eye-protection feet footwear helmets information informing injury limited-access peotective-equipment protective red restricted restriction restrictions risk risks risky unauthorised unauthorized visibility warning-sign white workers workmen anas superciliosa aquatic bird Australian bird black eye-stripe brown duck chick common dark-brown direction duck ducklings fauna follow follow-the-leader following fowl grey duck guidance guiding lead leading mother omnivore omnivorous Pacific black duck waterbird waterfowl widespread wild duck ahead anas-superciliosa aquatic-bird black-eye-stripe brown-duck chicks grey-duck lake Pacific-black-duck reflecting reflections ripples rippling sunlight sunshine surface surfaces swimming water wetlands wild-duck anciet character egypt history Horus icon letter pictogram Ra re religion Scripture symbol