bicolor black blue dots frog green leaves legged Phyllobates poison water Ardea-picata Australian bird black-winged blue-black carnivores carnivorous crest crested Heron lakeside long-legged pied-egret Pied-Heron reeds reedy sharp-beaked sharp-bill thin wader wading water-bird White-headed-Egret yellow-bill yellow-legged carnivore egretta-picata pond reflections sharp-eyed wading-bird aquatic black-bill black-winged-stilt cautious dog-bird foraging himantopus-himantopus long-beaked longshanks mature pied-stilt red-legged shore-bird stilt territorial white white-headed-stilt wide-spread himantopus-himantopus-leucocephalus ripples rippling stream black-widow bright black danger dangerous deadly female poisonous red redback spider toxic underbelly underside venomous bill black-necked-stork color colored coloring colors colour coloured colouring colours contrast contrasting ephippiorhynchus-asiaticus feathers glossy Jabiru large-birds long-necked near-threatened plumage slender stork waders wetlands adult-bird distance distant himantopus himantopus large protective shore shore-line widespread young