Adult great cormorant clean feathers perched on post above water and dives into water in Den Oever, Netherlands at sunset

great cormorant grooming dive perched slow motion phalacrocorax carbo preening preen feathers wooden stick above water closeup reflection reflected animal bird black beak profile bill spring clean plumage large resting exotic wild wildlife wooden log lake ornithology cormorant hygiene black cormorant den oever netherlands sunset rippled behavior adult male white neck post stick one