beak bird black bill black crown bright eyed cinnamon cleaning colored coloring colors coloured colouring colours fauna grooming head plumes Heron long white head plumes long yellow legs Nankeen night heron nocturnal nuptial plumes nycticorax caledonicus omnivore omnivorous plumes preening rufous night heron secretive sharp sharp eyed shy stocky waterbird widespread wildlife airborne animals birding birds bunch coconut palm dusk Egrets evening flight flock fly flying group India karnataka Mangalore orange silhouette stork storks sunset trees white animal beautiful beauty croaking eye feather female forage garden great leaf life monsoon nature Night Heron Nycticorax outdoor plant spring summer tail water wetland wharf wing Australia grey blue heron feathers waterfowl big Goliath head high