black background feathers fun splashing swan waterdrops white swan wings afraid bill bird birds black swan cob dream duck flu hide rest sleep sleeping stroke Australia Australian black Cygnus atratus emblem emblematic fauna gregarious iconic large life pairs pair protected protected species red beaked red eyed reflections ripples rippling river social swans swimming symbol symbolic water bird Western Australian State emblem black-swan cygnus-atratus dark green-water life-pairs pond protected-species red-beaked red-eyed water water-bird Western-Australian-State-emblem beak Black-necked swan cute Cygnus melanocoryphu feather lob nature red swim together two wildlife zoo