White Little Egret or Small Heron on rapids of fast-flowing Yangjae Stream standing in shallow water with small waterfall behind, wildlife in Seoul South Korea

little egret egret waterbird heron white plumes littleegret wading wildlife bird white feather ardeidae black beak conservation beak environment fauna splashes animal standing nature ornithology flowing hunter pond fishing stream plumes searching fastflowing rapids yangjae water shallow protection waterfall south korea detail seoul garzetta closeup feather close up surface wild little rocks nip stones sunset