appearance black brightly-coloured carpeting-plants clump-forming clumps color coloration colored colorful colors colour coloured colourful colours common daisy-like drought-tolerant environmental-weed flower flowers garden flowers garden-escape gazania gazanias golden hardy introduced-species invasive lance-shaped-leaves low-growing orange perennial plants prolific rapid-spreader resilient roadside-weeds South-African streaked tough vivid water-wise weed widespread wind-blown-seeds yellow advice alert announcement assistance be-careful beware buoyancy care caution circle circular communicating communication danger flotation-device information informing kisby-ring lettering life-preserver life-saving-buoy lifebelt lifebuoy lifering lifesaver message no-lifeguard perry-buoy personal-protective-equipment pool red rescue-aid rescue-device ring-buoy risk risks risky safety safety-device sign signage swim swimming swimming-pool warning warning-sign water white Australia Australian beak bill bird curved-beak curved-bill downcurved-bill dusky farmer's-friend fauna featheed feathers feeding Grasslands ibis ibises insect-eating insectivore insectivorous iridescence iridescent iridescent-bronze large-waterbird long-down-curved-bill metallic-sheen naked-black-head plumage reedy grass shadows shiny straw-necked-ibis sunlight sunshine threskiornis-spinicollis waders wading-bird water-bird wildlife