Australian bird black-bill black-winged-stilt carnivores carnivorous dog-bird foraging himantopus-himantopus-leucocephalus long-beaked long-legged longshanks pied-stilt red-legged reflections ripples rippling sharp-beaked sharp-bill stilt stream thin wader wading water water-bird white-headed-stilt aquatic black cautious himantopus-himantopus mature shore-bird territorial wading-bird white wide-spread Ardea-alba balanced balancing carnivore common-egret elegant feathers foliage great-egret greenery Heron large-egret long-necked motionless patient plumage reeds resting solitary-feeder standing-still waiting water’s-edge white-egret widely-distributed yellow-billed yellow-eyed plume plumed Ardea-picata black-winged blue-black crest crested green lakeside pied-egret Pied-Heron reedy White-headed-Egret yellow-bill yellow-legged Australia black-swan curved-neck cygnus-atratus dark elegance emblem emblematic fauna gregarious iconic large pair protected protected-species red-beaked red-eyed social swan symbol symbolic Western-Australian-State-emblem wildlife egretta-picata pond sharp-eyed