background bird black groningen Heron illustration mirror nature vector wading wallpaper water white flying free silhouette wings feathers long bill Long Neck outdoors sky sound tree wading bird Ardea-picata Australia Australian colored colors coloured colours crest crested egret fauna long-legged Pied Egret Pied-Heron plumage raised ruffled sleek wader wading-bird waiting watching water-bird wetlands-bird White-headed-Egret wildlife animal crane feathered large aves birding Night Heron nocturnal wharf fear flight gull pink texas wetlands