night heron, nycticorax nycticorax, grey water bird sitting in the water, animal in the nature habitat, bulgaria

adult animal avian beak beautiful bird birdwatching black blue bulgaria closeup color crowned cute czech delta egret europe eye fauna feather fishing france gray green grey habitat heron hungary image lake marsh migratory molt natural nature night nycticorax plumage pond portrait second sitting summer swamp the wader water wetland white wild wildlife wing young