Eastern Great Egret Bird Preen Feather Perched on Pine Tree And Open Bill Making Sound With Shivering Throat in South Korea

eastern great egret great egret egret ardea alba modesta ardea alba bird preen feather pine tree pine perched sit nest one bill beak rest open throat breathing attracting crying closeup attention screaming neck behaviour cry avian quack sing tongue shivering shaking branches hide groom plumage wings clean shiver all white korea wild wildlife